U.S. Department of Transportation

Federal Aviation Administration

Washington, D.C.

 

Master Minimum Equipment List

 

 

 

Revision: 35

Date:  04/25/2014

 

BOEING 747

B-747-100/200/300/SP SERIES

 

J. Steven Foss, Chairman

Flight Operations Evaluation Board (FOEB)

 

 

Federal Aviation Administration

Aircraft Evaluation Group

1601 Lind Ave. S.W.

Renton, WA 98057-3356

 

 

 

 

Telephone:

(425) 917-6600

FAX:

(425) 917-6638

 

 

 

 

                                        FEDERAL AVIATION ADMINISTRATION        Page: I

                                                                                                                            Revision: 35

                                           MASTER MINIMUM EQUIPMENT LIST           Date: 04/25/2014

 

                                           (BOEING B-747-100/200/300/SP SERIES)

 

                                                                Table of Contents

 

 

SYSTEM                                                    PAGES                        REVISION                 DATE

 

Title Page                                                                                          35                        04/25/2014

 

Table of Contents                                  I, II                                        35                        04/25/2014

                 

Highlights of Change                             III, IV                                     35                        04/25/2014

                 

Definitions                                            V                                          35                        04/25/2014

                                                           

Preamble                                              VI                                          35                        04/25/2014

 

21 Air Conditioning                                21-1 thru 21-39                       35                        04/25/2014

 

22 Auto Flight                                       22-1 thru 22-5                         33a                      03/24/2008

 

23 Communications                               23-1 thru 23-20                       35                        04/25/2014

 

24 Electrical Power                                24-1 thru 24-9                         32                        04/12/2005

 

25 Equipment/Furnishings                      25-1 thru 25-44                       35                        04/25/2014

 

26 Fire Protection                                  26-1 thru 26-24                       32                        04/12/2005

 

27 Flight Controls                                  27-1 thru 27-9                         34a                      08/17/2009

 

28 Fuel                                                 28-1 thru 28-15                       33                        05/04/2006

 

29 Hydraulic Power                                29-1 thru 29-13                       32                        04/12/2005

 

30 Ice and Rain Protection                     30-1 thru 30-18                       32                        04/12/2005

 

31 Indicating/Recording Systems           31-1 thru 31-3                         35                        04/25/2014

 

32 Landing Gear                                    32-1 thru 32-11                       32                        04/12/2005

 

33 Lights                                               33-1 thru 33-12                       35                        04/25/2014

 

34 Navigation                                        34-1 thru 34-57                       35                        04/25/2014

 

35 Oxygen                                            35-1 thru 35-3                         35                        04/25/2014

 

36 Pneumatic                                        36-1 thru 36-20                       32                        04/12/2005

 

 

                                        FEDERAL AVIATION ADMINISTRATION         Page: II

                                                                                                                             Revision: 35

                                           MASTER MINIMUM EQUIPMENT LIST            Date: 04/25/2014

 

                                           (BOEING B-747-100/200/300/SP SERIES)

 

                                                            Table of Contents

 

 

 

38 Water/Waste                                     38-1 thru 38-2                         35                     04/25/2014

 

49 Airborne Auxiliary Power                   49-1 thru 49-4                         32                     04/12/2005

 

52 Doors                                              52-1 thru 52-15                       32                     04/12/2005

 

53 Fuselage                                          53-1                                      30                     07/27/2000

 

56 Windows                                          56-1                                      34a                   08/17/2009

 

73 Engine Fuel & Control                       73-1 thru 73-5                         31c                   07/28/2004

 

74 Ignition                                             74-1                                      29b                   03/09/2000

 

75 Bleed Air                                          75-1 thru 75-3                         29b                   03/09/2000

 

76 Engine Controls                                76-1 thru 76-4                         29b                   03/09/2000

 

77 Engine Indicating                              77-1 thru 77-16                       32                     04/12/2005

 

78 Engine Exhaust                                78-1 thru 78-18                       32                     04/12/2005

 

79 Engine Oil                                        79-1 thru 79-5                         32                     04/12/2005

 

80 Starting                                            80-1                                      31d                   11/02/2004

 

82 Water Injection                                  82-1 thru 82-3                         30                     07/27/2000

 

 

U. S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION: 35

DATE: 04/25/2014

PAGE NO:

III

HIGHLIGHTS OF CHANGE

 

EFFECTIVE ABOVE DATE, the Boeing 747 Master Minimum Equipment List has been revised. Please replace pages of previous lists with Revision 35 for a complete up-to-date MMEL. Retain this sheet with your MMEL until the next revision is issued. All changes are reflected in the highlights of change listed below.

 

ATA 21           AIR CONDITIONING

 

Item 2    Sub item 3)  Added STC ST02646CH for the National Aircraft Service, Inc. NASI PACK FCS-ECO.

 

Item 3    Sub item 2)  Added STC ST02646CH for the National Aircraft Service, Inc. NASI PACK FCS.

 

Item 5    Sub item 2)  Added STC ST02646CH for the National Aircraft Service, Inc. NASI PACK FCS.

 

Item 13  Sub item 1)  Added STC ST02646CH for the National Aircraft Service, Inc. NASI PACK FCS.

 

ATA 23           COMMUNICATIONS

 

Item 3    Sub item 2)  Revised to align with FAA Policy Letter 106 Revision 4, dated January 18, 2012.

 

Item 7    Sub item 1)  Revised to align with FAA Policy Letter 9 Revision 11, dated December 17, 2012.

 

Item 11  Revised to align with FAA Policy Letter 9 Revision 11, dated December 17, 2012.

 

Item 16  Revised to align with FAA Policy Letter 58 Revision 4, dated March 24, 2012.

 

ATA 25           EQUIPMENT / FURNISHINGS

 

Item 3    Revised to align with FAA Policy Letter 47 Revision 2, dated October 17, 2011.

 

Item 10  Revised repair interval and added requirement to cover associated floor proximity lights per FAA Policy Letter 1 Revision 4, dated February 27, 2010.

 

Item 11  Revised repair interval. Added “or slide missing” per  FAA Policy Letter 99 Revision 2, dated February 26, 2010.

 

Item 14  Revised to align with FAA Policy Letter 89 Revision 2, dated January 31, 2009.

 

Item 19  Revised to align with FAA Policy Letter 100 Revision 2, dated January 20, 2009.

 

 

U. S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION: 35

DATE: 04/25/2014

PAGE NO:

IV

HIGHLIGHTS OF CHANGE

ATA 25           EQUIPMENT / FURNISHINGS (cont’d)

 

Item 21   Sub item 1)  Revised to align with FAA Policy Letter 116 Revision 3, dated December 17, 2012.

 

Item 22   Sub items 1), 3), 4)  Revised to align with FAA Policy Letter 79 Revision 8, dated March 12, 2012.

 

Item 23   Sub items 1), 3)  Revised to align with FAA Policy Letter 56 Revision 5, dated January 1, 2012.

 

Item 25  Revised to align with FAA Policy Letter 73 Revision 5, dated June 15, 2011.

 

Item 26   Sub item 1)  Revised to align with FAA Policy Letter 96 Revision 2, dated January 29, 2010.

 

Item 28  Revised to align with FAA Policy Letter 104 Revision 6, dated December 17,

              2012.

 

ATA 31           INDICATING/RECORDING SYSTEMS

 

Item 2  Revised to align with FAA Policy Letter 87 Revision 10, dated August 10, 2010.

 

ATA 33           LIGHTS

 

Item 1  Revised to align with FAA Policy Letter 77 Revision 4, dated December 17, 2012.

 

Item 2  Revised to align with FAA Policy Letter 123 Revision 1, dated April 30, 2010.

 

ATA 34           NAVIGATION

 

Item 26   Sub item 2)  Revised to align with FAA Policy Letter 76 Revision 6, dated July 30, 2013.

 

Item 28  Revised to align with FAA Policy Letter 39 Revision 5, dated January 29, 2010.

 

ATA 35           OXYGEN

 

Item 6  Revised to align with FAA Policy Letter 43 Revision 2, dated December 18, 2011.

 

ATA 38           WATER / WASTE

 

Item 2  Revised to align with FAA Policy Letter 83 Revision 7, dated January 24, 2013.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION: 35

DATE: 04/25/2014

PAGE NO:

V

DEFINITIONS

 

 

DEFINITIONS

 

 

For the Master Minimum Equipment List, Definitions addendum, refer to the current FAA MMEL Policy Letter PL-25, Policy Concerning MMEL Definitions as found on the Flight as well as, the current Standards Information Management System (FSIMS) website.

 

 

FSIMS - Publications - MMEL Policy Letters

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION: 35

DATE: 04/25/2014

PAGE NO:

VI

PREAMBLE

 

 

PREAMBLE

 

For the Master Minimum Equipment List, Preamble addendum as used for operations under 14 CFR Parts 121, 125, 129, and 135, refer to the current FAA Policy Letter

PL-34, MMEL and MEL Preamble, as found on the Flight Standards Information Management System (FSIMS) website.

 

FSIMS – Publications - MMEL and MEL Preamble

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-1

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

1.

Packs

 

 

 

 

 

 

 

1)   Passenger 

      Configuration          

C

-

2

 (M) May be inoperative provided two

 packs operate normally in full flow

 position.

 

 

 

       a)  Full Flow Mode

C

3

1

 May be inoperative provided:

a)    One pack operates normally in full flow position, and

b)    Two packs operate normally in the ½ flow position.

 

 

 

2)  Cargo Configuration  

      (Pressurized)

 

 

 

 

 

 

 

 

 

a)   8-10 Main Entry

            Doors  Installed

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent operates normally, and

b)    If equipment cooling is operated in SMOKE mode, the airplane remains at or below FL 180.

 

 

 

 

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent remains open, and

b)    If equipment cooling is operated in NORM mode, the airplane remains at or below FL 200.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-2

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

1.

Packs (Cont’d)

 

 

 

 

 

 

 

2)   Cargo Configuration (Pressurized) (Cont’d)

 

 

 

 

 

 

 

 

 

a)  8-10 Main Entry

     Doors Installed (Cont’d)

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent remains open, and

b)    If equipment cooling is operated in SMOKE mode, the airplane remains at or below FL 180.

 

 

 

b)  2 Main Entry        Doors Installed              

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent operates normally, and

b)    If equipment cooling is operated in SMOKE mode, the airplane remains at or below FL 250.

 

 

 

 

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent remains open, and

b)    If equipment cooling is operated in NORM mode, the airplane remains at or below FL 310.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-3

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

1.

Packs (Cont’d)

 

 

 

 

 

 

 

2)   Cargo Configuration (Pressurized) (Cont’d)

 

 

 

 

 

 

 

 

 

b)  2 Main Entry Doors Installed (Cont’d)

C

-

1

 (M) (O) Operations may be conducted

 with one pack operating provided:

a)    Ram air vent remains open, and

b)    If equipment cooling is operated in SMOKE mode, the airplane remains at or below FL 250.

 

 

 

*** c)  Three Pack

           Configuration

D

3

2

 

 

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-4

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

1.

Packs (Cont’d)

 

 

 

 

 

 

 

3)  Cargo Configuration

     (Unpressurized)

C

-

0

 (M) (O) May be inoperative in an

 unpressurized configuration provided:

a)    All equipment cooling blowers operate normally,

b)    Equipment cooling must be in the DITCH mode,

c)    Ram air vent valve operates normally, or remains open,

d)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits, and

e)    Extended overwater flight is prohibited.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define

             which items are approved for 

             inclusion in the Fly Away Kits

             and which materials can be used

             as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-5

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

2.

Pack Flow Control

and Shutoff Valve

 

 

 

 

 

 

 

1)    Three Pack Airplanes

C

3

-

 (M) (O) May be inoperative for

 associated inoperative pack(s).

 

 

 

*** a)  Half Flow Valve Position

C

-

0

 

 

 

 

 

b)    Cargo

       Configuration

D

3

2

 (M) (O) May be inoperative for

 associated inoperative pack.

 

 

 

*** c)  Cargo

        Configuration

           Half Flow Position

D

3

2

 

 

 

 

 

 

2)    Two Pack Airplanes (Cargo Configuration)

C

2

1

 (M) (O) May be inoperative for

 associated inoperative pack.

 

 

 

*** a)  Half Flow Valve

           Position

C

-

-

 

 

 

 

 

3)    NASI PACK FCS-ECO (STC ST02646CH)

D

1

0

 (M) May be inoperative deactivated off.

|

 |

 |

 

 

 

 

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-6

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

3.

Air Cycle Machine (ACM)

C

-

1

 (M) (O) May be inoperative provided, if

 auto control is used, associated bypass

 valve(s) is secured in the full heat (open)

 position.

 

 

 

 

C

-

1

 (M) (O) May be inoperative provided, if

 manual control is used, associated

  bypass valve(s) remains in the full heat

 (open) position.

 

 

 

 

C

-

-

 (M) (O) May be inoperative provided,

 associated pack(s) is inoperative.

 

 

 

1)  Cargo Configuration

     Three Pack

     Airplanes

D

3

2

 (M) (O) One may be inoperative

 provided, if auto control is used,

 associated bypass valve is secured in

 the full heat (open) position.

 

 

 

 

D

3

2

 (M) (O) One may be inoperative

 provided, if manual control is used,

 associated bypass valve remains in

 the full heat (open) position.

 

 

 

 

D

3

2

 (M) (O) One may be inoperative

 provided associated pack is inoperative.

 

 

 

2)    With NASI PACK FCS (STC ST02646CH)

C

2

1

 (M) (O) One may be inoperative provided, if manual control is used, associated bypass valve remains in the full heat (open) position.

|

|

|

|

 

 

 

 

 

 

 

 

 

C

2

1

 (M) One may be inoperative provided:

a)    Associated pack is selected OFF.

|

|

 

 

 

 

 

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-7

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

4.

Pack Coolant

(Inlet/Exit Door) Systems

C

3

2

 (M) (O) On three pack airplanes, one

 inlet door may be inoperative in the full

 open to 40% from full open position

 (with associated exit door inoperative)

 provided:

a)    Associated pack is operated in auto mode only,

b)    Remaining two packs operate normally, and

c)    Associated exit door is deactivated at least 50% open.

 

 

 

 

C

-

0

 (M) (O) Inlet doors may be inoperative

 in the full open to 40% from full open

 position provided:

a)    Associated exit door(s) operates normally,

b)    Associated pack(s) is operated in the manual mode, and

c)    All associated pack indications operate normally.

 

 

 

 

C

-

0

 (M) (O) Inlet doors may be inoperative

 in the full open to 40% from full open

  position provided:

a)    Associated exit door(s) is deactivated and secured full open,

b)    Associated pack(s) is operated in the manual mode, and

c)    All associated pack indications operate normally.

 

 

 

 

C

-

0

 (M) (O) Inlet and exit doors may be

 inoperative in any position for an

 inoperative pack provided associated

 exit door is open more than the inlet

 door on airplanes with line number 242

 and subsequent, and on airplanes with

 S/B 21-2194 or production equivalent

 incorporated.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-8

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

4.

Pack Coolant

(Inlet/Exit Door)

Systems

(Cont’d)

C

-

0

 (M) (O) Inlet and exit doors may be

 inoperative in any position for an

 inoperative pack provided associated

 exit door is deactivated and secured at

 least 50% open on airplanes before line

 number 242, or without S/B 21-2194

 incorporated.

 

 

 

 

C

-

0

 (M) (O) Exit doors may be inoperative

 provided they remain in the full open to

 ½ open position.

 

 

1)  Cargo

     Configuration

     Three Pack

     Airplanes

D

3

2

 (M) (O) One inlet door may be

 inoperative in the full open position to

 40% from full open (with associated exit

 door inoperative) provided:

a)    Associated pack is operated in auto mode only, and

b)    Associated exit door is deactivated at least 50% open.

 

 

 

 

D

3

2

 (M) One inlet door may be inoperative

 in the full open position to 40% from

 full open (with associated exit door

 inoperative) provided associated pack

 is not used.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-9

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

5.

ACM Bypass Valves

C

-

1

 (M) (O) May be inoperative provided

 valves are deactivated open before

 departure.

 

 

 

 

C

-

-

 (O) May be inoperative provided

 associated pack is not used.

 

 

 

1)  Cargo Configuration

     Three Pack Airplanes

D

3

2

 (M) (O) One may be inoperative

 provided valve is deactivated open

 before departure.

 

 

 

 

D

3

2

 One may be inoperative provided

 associated pack is not used.

 

 

 

2)    With NAS PACK FCS (STC ST02646CH)

C

2

1

 (M) (O) One may be inoperative provided valve is deactivated open before departure.

|

|

|

 

 

 

 

 

 

 

 

 

C

2

1

 (M) One may be inoperative provided:

a)    Associated pack is selected OFF.

|

|

 

 

 

 

 

 

 

6.

Pack Control

(Auto or Manual)

C

-

-

 Either Automatic or Manual feature may

 be inoperative for each operating pack.

 

 

 

1)  Cargo Configuration

     Three Pack Airplanes

D

3

2

 Either Automatic or Manual feature may

 be inoperative.

 

 

7.

Pack Cooling Door/ACM Bypass Position Indicators

C

-

0

 (O) Indications may be inoperative

 provided associated pack ACM

 OUTLET/COMP DISCH temperature

 indicators operate normally.

 

 

 

 

C

-

-

 (M) (O) Indications may be inoperative

 provided associated pack is not used.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-10

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

7.

Pack Cooling

Door/ACM Bypass Position Indicators

(Cont’d)

 

 

 

 

 

 

 

 

 

 

1)  Cargo Configuration

     Three Pack Airplanes

D

3

2

 (M) (O) One may be inoperative

 provided Pack Coolant Inlet/Exit Door

 is considered inoperative.

 

 

 

 

D

3

2

 (M) (O) One may be inoperative

 provided ACM Bypass valve is

 considered inoperative.

 

 

 

 

D

3

2

 One may be inoperative provided

 associated pack is not used.

 

 

8.

Pack Overheat Trip System

C

-

-

 (O) One may be inoperative provided

 ACM OUTLET/COMP DISCH

 temperature indications of the

 associated pack operates normally.

 

 

 

 

C

-

-

 (M) (O) May be inoperative provided

 associated pack is not used.

 

 

 

1)  Cargo Configuration

     Three Pack Airplanes

D

3

2

 (O) One may be inoperative provided

 ACM OUTLET/COMP DISCH

 temperature indications of the

 associated pack operates normally.

 

 

 

 

D

3

2

 One may be inoperative provided

 associated pack is not used.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-11

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

9.

Pack Trip Lights

C

-

-

 (O) One may be inoperative provided

 associated pack airflow indicator

 operates normally.

 

 

 

 

C

-

-

 (O) One may be inoperative provided

 associated duct pressure indicator

 operates normally.

 

 

 

 

C

-

-

 (M) (O) May be inoperative provided

 associated pack is not used.

 

 

 

1)   Cargo Configuration Three Pack Airplanes

D

3

2

 (O) One may be inoperative provided

 associated pack airflow indicator

 operates normally.

 

 

 

 

D

3

2

 (O) One may be inoperative provided

 associated duct pressure indicator

 operates normally.

 

 

 

 

D

3

2

 One may be inoperative provided

 associated pack is not used.

 

 

10.

Pack Temperature Indication Systems

C

-

0

 

 

 

 

11. ***

Pack Airflow

Indication Systems

D

-

0

 

 

 

 

12. ***

Duct Low Pressure Indication Systems

D

-

0

 

 

 

 

13.

Water Separator Coalescer Bags

C

-

0

 May be operated with coalescer bags

 removed.

 

 

 

1)   Cargo Configuration Three Pack Airplanes

D

3

2

 One pack may be operated with

 coalescer bag removed.

 

 

 

a)    With NASI PACK FCS STC (ST02646CH)

C

2

0

May be operated with coalescer bags removed.

|

|

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-12

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

14.

Zone Temperature Control System, Automatic/Manual (Flight Deck, Cabin Zones, Upper Deck with Trim Air Systems)

 

C

-

-

 (O) Either Automatic or Manual controls

 may be inoperative.

 

 

 

C

-

-

 (O) Automatic and Manual controls may

 be inoperative provided Master Trim Air

 Shutoff Valve remains closed.

 

 

 

1)   Trim Air Source Downstream of Pack Flow Control and Shutoff Valve

 

 

 

 

 

 

 

 

 

 

a)    Zone 1 Trim Air

      Modulating       Valves

C

1

0

 (M) (O) Automatic and Manual controls

 may be inoperative provided Zone 1 Trim

 Air Modulating Valve remains in the full

 cool (closed) position.

 

 

 

b)    All Other Zone

      Trim Air       Modulating       Valves

C

-

-

 (M) (O) Automatic and Manual controls

 may be inoperative provided associated

 Zone Trim Air Modulating Valve(s) is

 deactivated in the full cool (closed) to

1/3 open position.

 

 

 

2)   Trim Air Source Upstream of Pack Flow Control and Shutoff Valve (Trim Air Check Valve deletion)

C

-

-

 (M) (O) Automatic and Manual controls

 may be inoperative provided associated

 Zone Trim Air Modulating Valve(s) is

 deactivated in the full cool (closed)

 position.

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-13

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

15.

Master Trim Air Valve (Passenger and Crew Compartments)

C

1

0

 (M) (O) May be inoperative closed.

 

 

 

 

 

1)  Trim Air Source Downstream of Pack Flow Control and Shutoff Valve

C

1

0

(M) (O) May be inoperative open

 provided:

a)    Zone 1 Trim Air Modulating Valve remains in the full cool (closed) position, and

b)    Zone Trim Air Modulating Valves for other zones operate normally in Manual Mode, or are deactivated in the full cool

      (closed) to 1/3 open position.

 

 

 

2)  Trim Air Source Upstream of Pack Flow Control and Shutoff Valve (Trim Air Check Valve deletion)

C

1

0

 (M) (O) May be inoperative open

 provided:

a)    Zone 1 Trim Air Modulating Valve remains in the full cool (closed) position, and

b)    Zone Trim Air Modulating Valves for other zones operate normally in Manual Mode, or are deactivated in the full cool

      (closed) position.

 

 

 

3)   Cargo Configuration

D

1

0

 (M) (O) May be inoperative closed.

 

 

 

4)   Pressure Regulating Function

C

1

0

 (M) May be operated with the pressure

 regulating function inoperative or

 deactivated.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-14

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

16.

Trim Air Modulating Valve Position Indicators (Passenger and Crew Systems)

C

-

0

 

 

 

 

 

 

17.

COMP Temperature Indicators (Passenger and Crew Systems)

C

-

0

 

 

 

 

 

18.

DUCT Temperature Indicators (Passenger and Crew Systems)

 

 

 

 

 

 

 

 

 

1)   Compartments Using Trim Air

C

-

0

 May be inoperative provided associated

 zone duct overheat protective system

 operates normally.

 

 

 

 

C

-

0

 May be inoperative provided associated

 trim air modulation valve remains in the

 cool (closed) position.

 

 

 

 

C

-

0

 May be inoperative provided trim

 air shutoff valve remains closed.

 

 

***

2)   Upper Deck With Electric Heaters

C

-

0

 May be inoperative provided associated

 duct overheat protection system

 operates normally.

 

 

 

 

C

-

0

 May be inoperative provided associated

 heater switches remain OFF.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-15

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

18.

DUCT Temperature Indicators (Passenger and Crew Systems) (Cont’d)

 

 

 

 

 

 

 

 

 

 

3)   Zone A With

      Electric Heaters

C

-

0

 (M) May be inoperative provided

 associated heater is deactivated.

 

 

 

 

C

-

0

 May be inoperative provided associated

 zone duct overheat protection system

 operates normally.

 

 

19.

Duct Overheat Protective Systems (Passenger and Crew Systems)

 

 

 

 

 

 

 

 

 

1)   Compartments

      Using Trim Air

C

-

0

 May be inoperative provided associated

 zone supply duct temperature indicator

 operates normally.

 

 

 

 

C

-

0

 May be inoperative provided associated

 trim air modulation valve remains in the

 cool (closed) position.

 

 

 

 

C

-

0

 May be inoperative provided trim air

 shutoff valve remains closed.

 

 

***

2)   Upper Deck With

      Electric Heaters

C

-

0

 May be inoperative provided associated

 heater switches remain OFF.

 

 

 

3)   Zone A With

      Electric Heaters

C

-

0

 (M) May be inoperative provided

 associated heater is deactivated.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-16

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

20. ***

Recirculating Fans

(or Flight Deck Fan)

C

-

0

 

 

 

 

21. ***

Gasper Fans

D

-

0

 

 

 

 

22.

Cabin Pressure Control System (Automatic)

 

 

 

 

 

 

 

 

1)   Outflow Valves Manual Close Priority Control (PRR 73278 or Production Equivalent Incorporated)

C

1

0

 (M) (O) Automatic Control to both

 outflow valves may be inoperative.

 

 

 

 

 

 

 

2)   PRR 73278 or Production Equivalent Not Incorporated

C

1

0

 (M) (O) Automatic Control to one outflow

 valve may be inoperative provided:

a)    Associated outflow valve remains closed above 15,000 ft. MSL., and

b)    A maximum of two packs are used for takeoff and landing when one outflow valve is closed.

 

 

 

 

C

1

0

 (M) (O) Automatic Control to both

 outflow valves may be inoperative at

 or below 15,000 ft. MSL.

 

 

 

 

 

 

 

 NOTE: “Automatic Control” includes

             Baro Set, Altitude Select and

             Rate Control.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-17

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

23.

Cabin Pressure Control Systems (Manual)

 

 

 

 

 

 

 

 

1)   Manual Positions

C

3

1

 (O) Two manual positions (MAN, MAN L,

 or MAN R) may be inoperative provided

 both outflow valves operate normally in

 both the manual and automatic control

 mode.

 

 

 

 

C

3

1

 (O) Two manual positions (MAN, MAN L,

 or MAN R) may be inoperative provided:

a)    Both outflow valves can be operated in manual control, and

b)    Limitations (if any) associated

      with automatic control

      inoperative are followed.

 

 

 

 

C

3

1

 (M) (O) Two manual positions (MAN,

 MAN L, or MAN R) may be inoperative

 provided:

a)    One outflow valve operates normally in manual and

      automatic control,

b)    Remaining outflow valve is deactivated closed, and

c)    A maximum of two packs are

      used for takeoff and landing

      when one outflow valve is closed.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-18

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

23.

Cabin Pressure Control Systems (Manual) (Cont’d)

 

 

 

 

 

 

 

 

 

1)   Manual Positions (Cont’d)

C

3

0

 (M) (O) Manual control to both outflow

 valves may be inoperative for

 unpressurized flight provided:

a)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits,

b)    All equipment cooling blowers operate normally,

c)    Equipment cooling is operated in the DITCH mode,

d)    One outflow valve is deactivated closed,

e)    One outflow valve remains full open, and

f)     Automatic control is available to the open outflow valve.

 

 

 

 

 

 

 

N NOTE: Operator MELs must define

                which items are approved for

                inclusion in the Fly Away Kits

                and which  materials can be

                used as ballast.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-19

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

23.

Cabin Pressure Control Systems (Manual) (Cont’d)

 

 

 

 

 

 

 

 

 

1)    Manual Positions

      (Cont’d)

C

3

0

 (M) (O) Manual control to both outflow

 valves may be inoperative for

 unpressurized flight provided:

a)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits,

b)    All equipment cooling blowers operate normally,

c)    Equipment cooling is operated in the DITCH mode,

d)    One outflow valve is deactivated full open, and

e)    Extended overwater flight is prohibited.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-20

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

24.

Outflow Valves

C

2

1

 (M) (O) One valve may be inoperative

 closed provided:

a)    Both manual and automatic controls operate normally on the remaining valve, and

b)    A maximum of two packs are used for takeoff and landing.

 

 

 

 

C

2

0

 (M) (O) May be inoperative for

 unpressurized flight provided:

a)    At least one valve remains fully open,

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits,

c)    All equipment cooling blowers operate normally,

d)    Equipment cooling is operated in the DITCH mode, and

e)    Extended overwater flight is prohibited.

 

 

 

 

 

 

 

 

 

 

 

 NOTE: Operator MELs must define

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-21

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

25.

Positive Pressure

Relief Valves

C

2

1

 (M) One may be inoperative provided:

a)    Remaining valve operates normally, and

b)    For airplanes on which trim air is taken from the pneumatic manifold upstream of the pack flow control and shutoff valve (trim air check valve deletion) installed:

            Auto shutdown of #2 pack is verified when remaining relief valve is tested.

 

 

 

 

C

2

1

 One may be inoperative provided:

a)    Remaining valve operates normally, and

b)    For airplanes on which trim air is taken from the pneumatic manifold upstream of the pack flow control and shutoff valve (trim air check valve deletion) installed:

            Operation is limited to a maximum of two packs.

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-22

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

25.

Positive Pressure

Relief Valves

(Cont’d)

C

2

1

 One may be inoperative provided:

a)    Remaining valve operates normally, and

b)    For airplanes on which trim air is taken from the pneumatic manifold upstream of the pack flow control and shutoff valve (trim air check valve deletion) installed:

           Airplane is operated with

           master trim air valve closed.

 

 

 

 

C

2

0

 (M) (O) May be inoperative provided:

a)    Flight is conducted in an unpressurized configuration, and

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE:  Operator MELs must define

              which items are approved for

              inclusion in the Fly Away Kits

              and which materials can be

              used as ballast.

 

 

26.

PRESS RELIEF Valve Open Lights

C

2

    0

 

 

 

 

27.

AUTO FAIL/RATE

LIMIT Light

C

1

0

 

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-23

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

28.

Outflow Valve Position Indication Systems

C

2

0

 (O) May be inoperative provided all

 remaining components and functions of

 the pressurization system operate

 normally.

 

 

 

 

C

2

0

 (M) (O) May be inoperative provided:

a)    Flight is conducted in an unpressurized configuration, and

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define  

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-24

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

29.

CABIN V/S Vertical Speed Indication

System

C

1

0

 (O) May be inoperative provided all

 remaining components and functions of

 the pressurization system operate

 normally.

 

 

 

 

C

1

0

 (M) (O) May be inoperative provided:

a)    Flight is conducted in an unpressurized configuration, and

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define  

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-25

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

30.

Cabin Altitude

Indication System

C

1

0

 (O) May be inoperative provided:

a)    Cabin differential pressure indicator operates normally, and

b)    A chart is provided the flight crew to convert differential pressure to cabin altitude.

 

 

 

 

C

1

0

  (M) (O) May be inoperative provided:

a)    Flight is conducted in an unpressurized configuration, and

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define  

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-26

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

31.

Cabin DIFF PRESS Indication System

C

1

0

 (O) May be inoperative provided:

a)    Cabin altitude indicator operates normally, and

b)    A chart is provided the flight crew to convert cabin altitude to differential pressure.

 

 

 

 

C

1

0

 (M) (O) May be inoperative provided:

a)    Flight is conducted in an unpressurized configuration, and

b)    Procedures are established and used to ensure the lower cargo compartments and Combi main deck cargo compartment remain empty or are verified to contain only empty cargo handling equipment, ballast (ballast may be loaded in ULDs), or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define  

              which items are approved for

              inclusion in the Fly Away Kits

              and which materials can be

              used as ballast.

 

 

32.

Cabin Altitude

Warning System

C

1

0

 (M) May be inoperative provided flight

 remains at or below 10,000 ft. MSL.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-27

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

33.

Equipment Cooling Blowers

 

 

 

 

 

 

 

 

1)   Main Equipment Center Cooling Blowers

C

2

1

 (M) (O) One may be inoperative

 provided:

a)    Both flow control valve and Upper Deck overboard dump valve operate normally in the SMOKE mode, and

b)    Flight is conducted in a pressurized configuration.

 

 

 

2)   Upper Deck Equipment Cooling Blower

C

1

0

 (M) (O) May be inoperative provided:

a)    Upper Deck overboard dump valve operates normally, and

b)    Flight is conducted in a pressurized configuration.

 

 

34.

INS (IRS) Blowers

C

-

0

 May be inoperative provided both main

 equipment blowers operate normally.

 

 

 

 

C

-

-

 May be inoperative provided, if one main

 equipment blower is inoperative, an INS

 (IRS) blower functions normally for each

 operating INS (IRS).

 

 

35.

Main Equipment Cooling Cargo Compartment Shutoff Valve

C

1

0

 (M) (O) May be inoperative closed

 provided:

a)    Equipment cooling system is operated in the SMOKE mode,

b)    Flow control valve and upper deck equipment cooling overboard dump valve are verified in the open (SMOKE mode) position, and

c)    Flight is conducted in a pressurized configuration.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-28

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

36.

Equipment Cooling

NO AIRFLOW

Indicating System

C

2

0

 (M) (O) May be inoperative provided:

a)    Equipment cooling system is operated in SMOKE mode,

b)    Flow control and upper deck equipment cooling overboard dump valves are verified in the open (SMOKE mode) position, and

c)    Flight is conducted in a pressurized configuration.

 

 

37.

Main Equipment Center Cooling Flow Control Valve

C

1

0

 (M) (O) May be inoperative in the open

 (SMOKE mode) position provided:

a)    Flight is conducted in a pressurized configuration, and

b)    Extended overwater flight is prohibited.

 

 

38.

Upper Deck Equipment Cooling Overboard Dump Valve

C

1

0

 (M) (O) May be inoperative open

 provided:

a)    Equipment cooling system is operated in the SMOKE mode,

b)    Flight is conducted in a pressurized configuration, and

c)    Extended overwater flight is prohibited.

 

 

39. ***

Main Equipment Center Cooling Bypass Valve System

C

-

0

 (M) May be inoperative in the

 non-bypass position.

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-29

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

40.

Equipment Cooling Smoke Detector

C

1

0

 (M) (O) May be inoperative provided:

a)    Equipment cooling system is operated in the SMOKE mode,

b)    Flow control and upper deck equipment cooling overboard dump valves are verified in the open (SMOKE mode) position, and

c)    Flight is conducted in a pressurized configuration.

 

 

41.

Lower Cargo Heating System

 

 

 

 

 

 

 

 

1)  Aft System

 

 

 

 

 

 

 

      a) Two Valve    

           Installation

D

1

0

 (M) May be inoperative provided one

 valve remains closed.

 

 

 

      b) Three Valve

          Installation

D

1

0

 (M) May be inoperative provided either

 the override valve, or both bulk control

 valve and container control valves

 remain closed.

 

 

 

2)  Forward System (Cargo Configuration) (Including Israel Aircraft Industry Special Freighter, STC ST00358LA)

D

1

0

 (M) May be inoperative provided one

 valve remains closed.

 

 

 

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-30

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

42.

Lower Cargo Heating Indicating System

 

 

 

 

 

 

 

 

1)  Aft System

C

-

0

 (M) May be inoperative (including the

 test function) provided it is verified that

 all valves and the overheat protective

 system operates normally.

 

 

 

 

 

D

-

0

 (O) May be inoperative (including test

 function) provided associated heating

 system is not used.

 

 

 

2)  Forward System

     (Cargo Configuration)

     (Including Israel

     Aircraft Industry

     Special Freighter,

     STC ST00358LA)

C

1

0

 (M) May be inoperative (including the

 test function) provided it is verified that

 all valves and the overheat protective

 system operates normally.

 

 

 

 

 

 

D

1

0

 (O) May be inoperative (including test

 function) provided associated heating

 system is not used.

 

 

43. ***

Wall Heat System

C

1

0

 Moved to ATA 21-58, Rev. 28.

 

 

 

44. ***

Upper Deck Heater System

C

-

0

 (M) May be inoperative provided

 heater(s) is deactivated.

 

 

 

1)  OVERHEAT Light

C

1

0

 (O) May be inoperative (and upper deck

 heat used) provided overheat protection

 and associated supply duct temperature

 indication operates normally.

 

 

 

2)  Cargo Configuration

D

2

1

 (M) One may be inoperative for all cargo

 operations provided associated heater is

 deactivated.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-31

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

45. ***

Galley Overboard

Vent Valve

(Manual or Electric)

 

 

 

 

 

 

 

 

 

1)  Main Deck and

     Upper Deck Galleys

     Installed

C

1

0

 May be inoperative in the low flow or

 closed position.

 

 

 

C

1

0

 May be inoperative in the high flow or

 open position provided three packs

 operate normally.

 

 

 

 

C

1

0

 May be inoperative in the high flow or

 open position provided:

a)    Two packs operate normally, and

b)    Airplane remains at or below

      FL 310.

 

 

 

2)    Lower Lobe

      Galley(s)

      Installed

C

1

0

 (M) May be inoperative (and lower lobe

 galley used) provided:

a)    Valve is secured CLOSED, and

b)    Galley/Lav Fan operates continuously.

 

 

 

 

C

1

0

 (M) May be inoperative OPEN provided:

a)    Lower lobe galley power is OFF,

b)    Lower lobe galleys are not occupied, and

c)    Three packs operate normally.

 

 

 

 

C

1

0

 (M) May be inoperative OPEN provided:

a)    Two packs operate normally, and

b)    Airplane remains at or below

      FL 310.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-32

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

46. ***

Galley/Lavatory Fan

 

 

 

 

 

 

 

 

1)  Lower Lobe

     Galley(s)

     Installed

C

-

0

 (M) (O) May be inoperative provided, if

 galleys are serviced with dry ice, AFM

 limitations (for galley/lavatory fan not

 operating) are observed.

 

 

 

 

C

-

0

 (M) (O) May be inoperative provided

 galleys are not serviced with dry ice.

 

 

 

a)    ATC TD9614LA-T

      Not Installed

C

-

0

 (M) (O) May be inoperative provided

 altitude limitations are observed.

 

 

 

b)  ATC TD9614LA-T

     Installed

C

-

0

 (M) (O) May be inoperative provided:

a)    Altitude limitations are observed,

b)    Operations do not require the use of SATCOM, and

c)    SATCOM System(s) is deactivated.

 

 

47.

Galley Supply

Shutoff Valve

(Lower Lobe Galley)

C

1

0

 (M) (O) May be inoperative provided

 integral fire extinguisher system is not

 relied upon.

 

 

 

 

 

 

 

 NOTE: See requirements for Lower Lobe

             Galley fire extinguisher system.

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-33

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

48. ***

Heater Systems

(Lower Lobe Galley)

C

-

0

 

 

 

 

 

1)  OVERHEAT Light

C

-

0

 (M) May be inoperative (and systems

 used) provided:

a)    Overheat protection system operates normally, and

b)    Associated supply duct temperature indications operate normally.

 

 

49. ***

NO AIRFLOW

Indicating System

(Lower Lobe Galley)

C

2

1

 (O) One light (on either main deck or

 galley deck) may be inoperative provided

 the remaining light is closely monitored.

 

 

 

 

C

2

0

 (M) (O) Lights may be inoperative

 provided associated galley is not

 serviced with dry ice.

 

 

 

 

C

2

0

 (O) Lights may be inoperative provided

 associated galley is not occupied.

 

 

50. ***

Disinsection System

D

1

0

 

 

 

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-34

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

51. ***

Ram Air Vent Valve

 

 

 

 

 

 

 

 

1)  Passenger

     Configuration

D

1

0

 May be inoperative in any position.

 

 

 

 

2)    Cargo Configuration

      (Including Israel

       Aircraft Industry

      Special Freighter,

      STC ST00358LA)

C

1

0

 (M) May be inoperative open provided

 two packs operate normally.

 

 

 

 

 

 

 

C

1

0

 (M) May be inoperative open, with single

 pack operating, provided:

a)    Altitude remains at or below

      FL 200 (with 8 or more main deck

      entry doors installed), and

b)    Equipment cooling is operated

      in NORM

 

 

 

 

C

1

0

 (M) May be inoperative open, with single

 pack operating, provided:

a)    Altitude remains at or below

      FL 180 (with 8 or more main deck

      entry doors installed), and

b)    Equipment cooling is operated in SMOKE mode.

 

 

 

 

 

C

1

0

 (M) May be inoperative open, with single

 pack operating, provided:

a)    Altitude remains at or below

      FL 310 (with 1 or 2 main deck

      entry doors installed), and

b)    Equipment cooling is operated

      in NORM.

 

         

 

(Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-35

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

51. ***

Ram Air Vent Valve (Cont’d)

 

 

 

 

 

 

 

 

2)  Cargo Configuration

      (Including Israel

      Aircraft Industry

      Special Freighter,

      STC ST00358LA)

      (Cont’d)

C

1

0

 (M) May be inoperative open, with single

 pack operating, provided:

a)    Altitude remains at or below

      FL 250 (with 1 or 2 main deck

      entry doors installed), and

b)    Equipment cooling is operated in SMOKE mode.

 

 

52. ***

Ram Air Vent Heater System (Including Israel Aircraft Industry Special Freighter, STC ST00358LA)

C

1

0

 (M) (O) May be inoperative provided:

a)    Alternate procedures are established and used to assure reasonable crew comfort, and

b)    Heater is deactivated.

 

 

53. ***

Aft Cargo Air Conditioning System Controls and Valves

 

 

 

 

 

 

 

 

 

1)  Auto or Manual

     Controls

D

2

0

 (M) (O) May be inoperative provided both

 conditioned air shutoff valve and aft

 cargo trim air shutoff valve operate

 normally.

 

 

 

2)  Conditioned Air

     Shutoff Valve and

     Aft Cargo Trim Air

     Shutoff Valve

D

2

0

 (O) May be inoperative closed.

 

 

 

 

    (Continued)

 

 

U.S. DEPARTMENT OF TRANSPORTATION

MASTER MINIMUM EQUIPMENT LIST

FEDERAL AVIATION ADMINISTRATION

AIRCRAFT:

BOEING 747

REVISION NO: 35

DATE: 04/25/2014

PAGE NO:

21-36

SYSTEM  &

SEQUENCE           ITEM

NUMBERS

 

   1.

2. NUMBER INSTALLED

 

3. NUMBER REQUIRED FOR DISPATCH

 

4. REMARKS AND EXCEPTIONS

21

AIR CONDITIONING

 

 

 

 

 

 

 

 

53. ***

Aft Cargo Air Conditioning System Controls and Valves (Cont’d)

 

 

 

 

 

 

 

 

 

 

3)  Aft Cargo Trim

     Air Valve

 

D

1

0

 (O) May be inoperative open, the system

 used, and the compartment loaded

 provided the trim air modulating valve

 is deactivated closed.

 

 

 

4)    Conditioned Air

      Shutoff Valve

D

1

0

 (O) May be inoperative open provided

 procedures are established and used to

 ensure the aft cargo compartment

 remains empty or is verified to contain

 only empty cargo handling equipment,

 ballast (ballast may be loaded in ULDs),

 or Fly Away Kits.

 

 

 

 

 

 

 

 NOTE: Operator MELs must define

             which items are approved for

             inclusion in the Fly Away Kits

             and which materials can be

             used as ballast.

 

 

 

5)    Trim Air

      Modulating Valve

D

1

0

 (O) May be inoperative closed.