Federal Aviation


MMEL Policy Letter (PL) 125, Revision 1


November 27, 2012


All Region Flight Standards Division Managers

All Aircraft Evaluation Group Managers


Manager, Air Transportation Division, AFS-200

Reply to Attn of:

Manager, New Program Implementation and International Support Branch, AFS-240


Equipment Relief without Passengers




PL-125, Revision 0, dated April 1, 2010

14 CFR 121.157(c), 121.285, 121.291, 121.309(f), 121.310, 121.313(f), 121.317, 121.391, 121.547, 121.571, 121.573, 121.583, 121.587, 125.331 and 135.85


To standardize Master Minimum Equipment List (MMEL) requirements for those items normally required for passenger carrying operations to be inoperative provided no passengers are carried.


Revision 1 defines specific provisos for the items identified in the original MMEL PL-125

Title 14 of the Code of Federal Regulations (14 CFR) requires specific items of equipment to be onboard airplanes for passenger carrying operations. Providing MMEL relief for these items allows operators the ability to position aircraft to another location and still carry cargo, crew members and other authorized persons.

14 CFR 121.583 states that when authorized by the certificate holder, certain persons may be carried aboard an airplane without complying with the passenger-carrying airplane requirements in 121.309(f), 121.310, 121.391, 121.571, and 121.587; the passenger-carrying operation requirements in 121.157(c) and 121.291; and the requirements pertaining to passengers in 121.285, 121.313(f), 121.317, 121.547, and 121.573. 14 CFR 121.583 further states the persons authorized to be carried and the requirements for allowing the authorized persons to be carried. Additionally, 125.331 and 135.85 allow carriage of certain persons without complying with the passenger-carrying requirements of the entire Part; not just specific sections of the Part.


Operator's alternate procedures must provide for the safe carriage of authorized persons and include a safety briefing on smoking, seat belts, emergency exits, oxygen, and if applicable, flotation equipment for EOW operations. The following standard MMEL proviso and repair category is adopted for equipment relief without revenue passengers:






Repair Interval

Number Installed

Number Required for Dispatch

Remarks or Exceptions







Door Slides




(M)(O) May be missing or inoperative provided:

a)        No passengers are carried,

b)      A maximum of 19 persons are carried as authorized by 14 CFR for non-passenger-carrying operations,

c)        Each person has unobstructed access from their seat to an operative exit, either regular or emergency,

d)      Inoperative exits are conspicuously identified as inoperative,

e)        Any Emergency Exit sign and floor proximity lights associated only with the inoperative exits are covered to obscure the sign and lights,

f)          Safety briefing includes the location of the inoperative exit(s) and instructions not to use the inoperative exit(s), and

g)      Alternate procedures are established and used.

1)         Megaphones

2)       Interior Emergency Lighting

3)       Exterior Emergency Lighting

4)       Escape Path Markings

5)       Exit Markings

6)       Flash Lights

7)       Flight Attendant Seats

8)       Printed Supplemental Safety Information




(O) May be missing or inoperative provided:

a)        No passengers are carried,

b)        A maximum of 19 persons are carried as authorized by 14 CFR for non-passenger-carrying operations, and

c)        Alternate procedures are established and used.


Each Flight Operations Evaluation Board (FOEB) Chair should apply this Policy to affected MMELs through the normal FOEB process.





Leslie H. Smith

Manager, Air Transportation Division