NOTICE

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL AVIATION ADMINISTRATION

N 8900.54

 

National Policy

Effective Date: 10/30/08

 

 

Cancellation Date: 10/30/09

 

SUBJ :

OpSpec/LOA B031 and B032 and MSpec MB031 - En Route Limitations and Provisions

1.          Purpose of This Notice. This notice provides revised guidance for Federal Aviation Administration (FAA) certificate-holding district offices (CHDO), certificate management office (CMO), principal operations inspectors (POI) assigned to operators conducting airplane operations under Title 14 of the Code of Federal Regulations (14 CFR) parts 91 subpart K, 121, 125 (including the Letter of Deviation Authority (LODA A125) operators), 129, and 135. This notice provides clarification of en route limitations with regard to the following three (3) areas:

·              Expanded interpretation of Class I navigation;

·              Expanded interpretation of Class II navigation; and

·              Additional paragraphs incorporating Required Navigation Performance (RNP) en route limitations.

2.          Audience. The primary audience for this notice is for  Flight Standards District office (FSDO) and CMO POIs with oversight responsibility for operators certificated under 14 CFR parts 91 subpart K, 121, 125, 129 and 135, International Field Offices, CMOs, and certificate management units. The secondary audience includes Flight Standards branches and divisions in the regions and in headquarters.

3.          Where You Can Find this Notice. Inspectors can access this notice through the Flight Standards Information Management System (FSIMS) at http://fsims.avs.faa.gov. Operators and the public may find this information at: http://fsims.faa.gov.

4.          Background. In order to improve operational guidance and harmonize with recent efforts by the International Civil Aviation Organization (ICAO), the FAA has refined its policy on the issuance of operations specifications (OpSpecs) paragraphs B031 and B032 concerning en route limitations and provisions.

5.          Guidance. The Flight Technologies and Procedures Division, AFS-400, in cooperation with the Air Transportation Division, AFS-200, and the General Aviation and Commercial Aviation Division, AFS-800, and industry members of the Operations Specifications Working Group (OSWG) developed this notice. This notice contains the following:

a.          The sample OpSpec B032 template that applies to parts 121, 125 and 135 found in Appendix A.

b.          The sample management specification (MSpec) MB031 template that applies to part 91 subpart K found in Appendix B.

c.            The sample letter of authorization (LOA) B032 template that applies to part 125M, found in Appendix C.

d.          The sample OpSpec B031 template that applies to part 129 found in Appendix D.

6.          Action. POIs should review the revised guidance for issuance of the paragraphs contained in this notice. POIs should provide this notice to the operators for whom they are responsible, alerting them to updated operating procedures as well as required pilot knowledge and training.

7.          Disposition. We will permanently incorporate the information in this notice in FSIMS before this notice expires. Direct questions or comments concerning this notice to the Flight Operations Branch, AFS-410, at 202-385-4625.

 

 

ORIGINAL SIGNED by

 

James J. Ballough

Director, Flight Standards Service


  

  

 Appendix A. Sample OpSpec Paragraph B032, En Route Limitations and Provisions: 14 CFR Parts 121, 135 and 125

a.   The certificate holder shall comply with the following instrument flight rules (IFR) en route limitations and provisions when conducting any en route operation under these operations specifications. Unless otherwise authorized by these operations specifications, the certificate holder shall not conduct IFR operations outside controlled airspace.

 

b.   When conducting Class I navigation:

 

(1)        An aircraft's position shall be "reliably fixed" as necessary to navigate to the degree of accuracy required for air traffic control.
(2)        With the exception of b(3) and b(5) below, the airways used and the off-airway routing predicated on airways navigation facilities shall lie within the operational service volume of the facilities defining the airways or off-airway routing.
(3)        Operations over routes with a minimum en route altitude (MEA) gap (or International Civil Aviation Organization (ICAO) equivalent) are an exception to the operational service volume requirement.
(4)        With the exception of b(5) below, the facilities which define an airway, or an off-airway routing predicated on airways navigation facilities, shall be used as the primary navigation reference.
(5)        An area navigation system may be used if the aircraft’s position can be "reliably fixed" at least once each hour using airway navigation facilities to the degree of accuracy required for air traffic control. This system must be certificated for use in IFR flight for the conduct of Class I navigation over the routes being flown and authorized in accordance with paragraph B034.

c.   When conducting Class II navigation:

 

(1)   Class II navigation as authorized in accordance with paragraph B036 or B054 is required anytime the above requirements cannot be met.

 

(2)   Required Navigational Performance (RNP) operations shall not be conducted unless navigation is conducted using an area navigation system which is certified for use in IFR flight for the route being flown and authorized in paragraph B036.


 

 

 

 Appendix B. Sample MSpec Paragraph MB031, IFR En Route Limitations and Provisions: 14 CFR Part 91 Subpart K

a.     The program manager is authorized to conduct instrument flight rules (IFR) en route operations specified in this management specification (MSpec) only within the areas of en route operation listed in paragraph MB050 of these MSpecs. The program manager shall comply with any limitations and/or procedures specified for each area listed and the provisions of the MSpecs referenced for each area.

 

b.     Unless otherwise authorized by these MSpecs, the program manager shall not conduct IFR operations in class G airspace.

 

c.     The program manager is authorized to conduct IFR en route navigation in Class I airspace in accordance with the following additional provisions:

 

(1)   Operate IFR flights over routing predicated on air traffic control (ATC) radar vectoring services within controlled airspace.

 

(2)   Operate IFR flights (including flights to alternate or diversionary airports) within controlled airspace over off-airway routings, which are predicated on airways navigation facilities, provided the following conditions are met:

 

(a)   These off-airway routings lie within the operational service volume of the facilities used and such off-airway operation is authorized by the appropriate ATC facility.

 

(b)   The operation is conducted in accordance with the route width and minimum en route altitude (MEA) criteria prescribed for or applied to the program manager by the appropriate International Civil Aviation Organization (ICAO) contracting state.

 

(c)   The required airborne and ground-based navigation facilities are available and operational and enable navigation performance to meet the degree of accuracy required for air traffic control over the route of flight specified in the ATC clearance.

 

(3)   When conducting Class I navigation:

 

(a)   An aircraft's position shall be "reliably fixed" as necessary, to navigate to the degree of accuracy required for air traffic control.

 

(b)   With the exception of c(3)(c) and (e) below, the airways used and the off-airway routing predicated on airways navigation facilities shall lie within the operational service volume of the facilities defining the airways or off-airway routing.

 

(c)   Operations over routes with an MEA gap (or ICAO equivalent) are an exception to the operational service volume requirement.

 

(d)   With the exception of c(3)(e) below, the facilities which define an airway or an off-airway routing predicated on airways navigation facilities, shall be used as the primary navigation reference.

 

(e)   An area navigation system may be used if the aircraft’s position can be “reliably fixed” at least once each hour using airway navigation facilities to the degree of accuracy required for air traffic control. This system must be certificated for use in IFR flight for the conduct of Class I navigation over the routes being flown and authorized in accordance with paragraph MB034 of these MSpecs.

 

d.     The program manager shall comply with the following IFR en route limitations and provisions when conducting any en route operation under these MSpecs.

 

(1)   Class II navigation as authorized in accordance with paragraph MB036 or MB054 of these MSpec is required anytime the requirements of subparagraph c. above cannot be met.

 

(2)   Required Navigational Performance (RNP) operations using Class II navigation shall not be conducted unless navigation is conducted using an area navigation system which is certified for use in IFR flight for the route being flown and authorized in paragraph MB036 of these MSpecs.

 

(3)   Deviations from routings specified in this paragraph are authorized when necessary due to in-flight emergencies or to avoid potentially hazardous meteorological condition.


 

 

 

 Appendix C. Sample LOA Paragraph B032, En Route Limitations and Provisions: 14 CFR Part 125M

Letter of Authorization

IFR En Route Limitations and Provisions

 

a.     The Operator/Company, authorized to conduct operations in accordance with the Letter of Deviation Authority (LODA A125), shall comply with the following instrument flight rules (IFR) en route limitations and provisions when conducting any en route operation under this letter of authorization. Unless otherwise authorized by the Administrator, the Operator/Company shall not conduct IFR operations outside controlled airspace.

 

b.     When conducting Class I navigation:

 

(1)   An aircraft's position shall be "reliably fixed" as necessary to navigate to the degree of accuracy required for air traffic control.

 

(2)    With the exception of b(3) and b(5) below, the airways used and the off-airway routing predicated on airways navigation facilities shall lie within the operational service volume of the facilities defining the airways or off-airway routing.

 

(3)   Operations over routes with an minimum en route altitude (MEA) gap (or International Civil Aviation Organization (ICAO) equivalent) are an exception to the operational service volume requirement.

 

(4)   With the exception of b(5) below, the facilities which define an airway, or an off-airway routing predicated on airways navigation facilities, shall be used as the primary navigation reference.

 

(5)   An area navigation system may be used if the aircraft’s position can be "reliably fixed" at least once each hour using airway navigation facilities to the degree of accuracy required for air traffic control. This system must be certificated for use in IFR flight for the conduct of Class I navigation over the routes being flown and authorized in accordance with LOA B034.

 

c.     When conducting Class II navigation:

 

(1)  Class II navigation as authorized in accordance with LOA B036 or B054 is required anytime the above requirements cannot be met.

 

(2)   Required Navigational Performance (RNP) operations shall not be conducted unless navigation is conducted using an area navigation system which is certified for use in IFR flight for the route being flown and authorized in LOA B036.


 

 

 

 Appendix D. Sample OpSpec B031, VFR and IFR En Route Limitations and Provisions: 14 CFR Part 129

a.     The foreign air carrier is authorized to conduct the en route operations specified in this paragraph only within the areas of en route operation listed in paragraph A001 of these operations specifications (OpSpecs). The foreign air carrier shall comply with any limitations and/or procedures specified for each area listed and the provisions of the paragraphs referenced for each area. The foreign air carrier shall not conduct any other en route operation within any other area under these OpSpecs.

 

b.     The foreign air carrier is authorized to conduct visual flight rules (VFR) Class I navigation only if paragraph B051 and /or B056 are also issued. VFR en route operations shall only be conducted in accordance with the procedures and operations authorized in those paragraphs.

 

c.     The foreign air carrier is authorized to conduct instrument flight rules (IFR) Class I navigation. When conducting IFR Class I navigation, the foreign air carrier is authorized to conduct these operations in accordance with the following additional provisions:

 

(1)   Except as authorized in paragraph A014 if issued, the foreign air carrier shall not conduct IFR en route operations is Class G airspace.

 

(2)   Except as authorized in paragraphs C064, C080, H113 and H121 if issued, the foreign air carrier shall not conduct IFR terminal operations (including flights to alternate or diversionary airports) in Class G airspace or for airplanes at airports without an operating control tower.

 

(3)   An aircraft's position shall be "reliably fixed" as necessary to navigate to the degree of accuracy required for air traffic control.

 

(4)   With the exception of c(5) and c(7) below, the airways used shall lie within the operational service volume of the facilities defining the airways or off-airway routing.

 

(5)   Operations over routes with an minimum en route altitude (MEA) gap (or International Civil Aviation Organization (ICAO) equivalent) are an exception to the operational service volume requirement.

 

(6)   With the exception of c(7) below, the facilities which define an airway shall be used as the primary navigation reference.

 

(7)   An area navigation system may be used if the aircraft’s position can be "reliably fixed" at least once each hour using airway navigation facilities to the degree of accuracy required for air traffic control (ATC). This system must be certificated for use in IFR flight for the conduct of Class I navigation over the routes being flown and authorized in accordance with paragraph B034.

 

(8)   Except in Class G airspace, operate IFR flights over routing predicated on ATC radar vectoring services.

 

(9)   Except in Class G airspace, operate IFR flights (including flights to alternate or diversionary airports) over off-airway routings, which are predicated on airways navigation facilities, provided the following conditions are met:

 

(a)   Airways navigation facilities shall be the primary navigation reference for these off-airway routings and the off-airway routings shall lie within the operational service volume of the facilities used. Such off-airway operation must be authorized by the appropriate ATC facility.

 

(b)   The operation shall be conducted in accordance with the route width and MEA criteria prescribed for or applied to the foreign air carrier by the appropriate ICAO contracting state.

 

(c)   The required airborne and ground-based navigation facilities are available and operational and enable navigation performance to meet the degree of accuracy required for air traffic control over the route of flight specified in the ATC clearance.

 

d.     Deviations from routings specified in this paragraph are authorized when necessary due to in-flight emergencies or to avoid potentially hazardous meteorological conditions.

 

e.     For operations within Class A airspace, the foreign air carrier is authorized to conduct Class I navigation under positive radar control with the area navigation or long-range navigation systems specified in paragraph B035 of these OpSpecs, if that paragraph is issued.

 

f.      The foreign air carrier is authorized to conduct Class I navigation, including en route IFR operations outside positive radar control, with the area navigation systems specified in paragraph B034 of these OpSpecs, if that paragraph is issued.