scope:

This specification establishes the performance, operating characteristics, design features, detailed interface configuration definitions and installation envelopes for turbojet and turbofan engines. It also establishes the demonstrations, tests, reports, inspection procedures, and other data required for satisfactory completion and acceptance, by the Using Service, of the Preliminary Flight Rating (PFR) the Production Release (PR) for the engines. Further, this specification identifies the tests, procedures and data required for satisfactory completion of the Acceptance Test (AT) of production units of either model engine. Notwithstanding the requirements for test verification of individual points of performance or operating characteristics of the engines covered by this specification for purposes of PFR, PR or AT, the engine manufacturer/contractor shall continue to be fully responsible for all features, characteristics and performance of the engine throughout the environmental conditions and operating envelope, to the extent required by the applicable contract. This specification also establishes the content and format to be used by the engine contractor for the preparation of the engine specification accordance with6 .5.