14 C.F.R. § 121.370 Special maintenance program requirements.
Title 14 - Aeronautics and Space
(a) No certificate holder may operate an Airbus Model A300 (excluding the –600 series), British Aerospace Model BAC 1–11, Boeing Model 707, 720, 727, 737, or 747, McDonnel Douglas Model DC–8, DC–9/MD–80 or DC–10, Fokker Model F28, or Lockheed Model L–1011 airplane beyond the applicable flight cycle implementation time specified below, or May 25, 2001, whichever occurs later, unless operations specifications have been issued to reference repair assessment guidelines applicable to the fuselage pressure boundary (fuselage skin, door skin, and bulkhead webs), and those guidelines are incorporated in its maintenance program. The repair assessment guidelines must be approved by the FAA Aircraft Certification Office (ACO), or office of the Transport Airplane Directorate, having cognizance over the type certificate for the affected airplane. (1) For the Airbus Model A300 (excluding the –600 series), the flight cycle implementation time is: (i) Model B2: 36,000 flights. (ii) Model B4–100 (including Model B4–2C): 30,000 flights above the window line, and 36,000 flights below the window line. (iii) Model B4–200: 25,500 flights above the window line, and 34,000 flights below the window line. (2) For all models of the British Aerospace BAC 1–11, the flight cycle implementation time is 60,000 flights. (3) For all models of the Boeing 707, the flight cycle implementation time is 15,000 flights. (4) For all models of the Boeing 720, the flight cycle implementation time is 23,000 flights. (5) For all models of the Boeing 727, the flight cycle implementation time is 45,000 flights. (6) For all models of the Boeing 737, the flight cycle implementation time is 60,000 flights. (7) For all models of the Boeing 747, the flight cycle implementation time is 15,000 flights. (8) For all models of the McDonnell Douglas DC–8, the flight cycle implementation time is 30,000 flights. (9) For all models of the McDonnell Douglas DC–9/MD–80, the flight cycle implementation time is 60,000 flights. (10) For all models of the McDonnell Douglas DC–10, the flight cycle implementation time is 30,000 flights. (11) For all models of the Lockheed L–1011, the flight cycle implementation time is 27,000 flights. (12) For the Fokker F–28 Mark 1000, 2000, 3000, and 4000, the flight cycle implementation time is 60,000 flights. (b) After December 16, 2008, no certificate holder may operate a turbine-powered transport category airplane with a type certificate issued after January 1, 1958 and either a maximum type certificated passenger capacity of 30 or more, or a maximum type certificated payload capacity of 7,500 pounds or more, unless instructions for maintenance and inspection of the fuel tank system are incorporated in its maintenance program. These instructions must address the actual configuration of the fuel tank systems of each affected airplane and must be approved by the FAA Aircraft Certification Office (ACO), or office of the Transport Airplane Directorate, having cognizance over the type certificate for the affected airplane. Operators must submit their request through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the manager of the appropriate office. Thereafter, the approved instructions can be revised only with the approval of the FAA Aircraft Certification Office (ACO), or office of the Transport Airplane Directorate, having cognizance over the type certificate for the affected airplane. Operators must submit their requests for revisions through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the manager of the appropriate office. [Doc. No. 29104, 65 FR 24125, Apr. 25, 2000; 65 FR 50744, Aug. 21, 2000, as amended by Amdt. 121–282, 66 FR 23130, May 7, 2001; ; Amdt. 121–305, 69 FR 45942, July 30, 2004]
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart L—Maintenance, Preventive Maintenance, and Alterations
§ 121.370 Special maintenance program requirements.
