Provides guidance regarding test cell correlation procedures for test cells used for in-service acceptance testing of turbofan and turbojet engines.

a. Evaluating Manufactured or Modified Aircraft. It provides a means but not the only means of evaluating manufactured or modified aircraft by the use of standard systems, processes, and tests necessary to determine pilot training and qualification requirements.

This AC provides guidance for applicants, pilots, evaluators, and instructors who seek to add an initial powered-lift category rating and specific type rating to their existing United States (U.S.) pilot certificate in accordance with Special Federal Aviation Regulation (SFAR) 120, Powered-Lift: Pilot Certification and Training; Operations Requirements.

This AC provides information that industry may use to develop and revise the minimum scheduled maintenance tasking/interval requirements for derivative or newly type-certificated aircraft and powerplants for Federal Aviation Administration (FAA) approval.