A PMA is required for any person producing replacement or modification engine parts for sale and for installation on a type-certificated engine model. A PMA is a combined design and production approval for replacement parts. Also we may use a PMA for the production of certain modification parts approved under supplemental type certificates (STC).

Regulatory requirements for an Engine PMA

  • Procedural Regulation: 21.303 of 14 CFR part 21
  • Airworthiness Regulation: 14 CFR part 33 (CAR 13 for older engines)

Procedural requirements for an engine PMA approval

  • Order 8110.42C, Parts Manufacturer Approval Procedures (6/23/2008)

Engine product PMA approval policies