14 C.F.R. § 121.370a Supplemental inspections.
Title 14 - Aeronautics and Space
(a) Applicability. Except as specified in paragraph (b) of this section, this section applies to transport category, turbine powered airplanes with a type certificate issued after January 1, 1958, that as a result of original type certification or later increase in capacity have— (1) A maximum type certificated passenger seating capacity of 30 or more; or (2) A maximum payload capacity of 7,500 pounds or more. (b) Exception. This section does not apply to an airplane operated by a certificate holder under this part between any point within the State of Alaska and any other point within the State of Alaska. (c) General requirements. After December 20, 2010, a certificate holder may not operate an airplane under this part unless the following requirements have been met: (1) The maintenance program for the airplane includes FAA-approved damage-tolerance-based inspections and procedures for airplane structure susceptible to fatigue cracking that could contribute to a catastrophic failure. These inspections and procedures must take into account the adverse affects repairs, alterations, and modifications may have on fatigue cracking and the inspection of this airplane structure. (2) The damage-tolerance-based inspections and procedures identified in this section and any revisions to these inspections and procedures must be approved by the Aircraft Certification Office or office of the Transport Airplane Directorate with oversight responsibility for the relevant type certificate or supplemental type certificate, as determined by the Administrator. The certificate holder must include the damage-tolerance-based inspections and procedures in the certificate holder's FAA-approved maintenance program. [Doc. No. FAA–1999–5401, 70 FR 5532, Feb. 2, 2005]
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart L—Maintenance, Preventive Maintenance, and Alterations
§ 121.370a Supplemental inspections.
