Airworthiness Directive · Amendment 39-21374 · Time limits/maintenance checks
Pilatus Aircraft Ltd. Airplanes
This AD applies to Pilatus Aircraft Ltd. Model PC-7 airplanes, all serial numbers, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Pilatus Aircraft Ltd. Model PC-7 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. This AD requires revising the Airworthiness Limitations section (ALS) of the existing aircraft maintenance manual (AMM) to introduce new mandatory repetitive inspections for the flap pivot arm assemblies and for certain wing angle brackets, and to implement a change to the Oxygen cylinder and pressure reducer task item. The FAA is issuing this AD to address the unsafe condition on these products.
Unless already done, before further flight: Incorporate the revised Airworthiness Limitation section as specified in Section 05-10-10, “Lifed and Overhauled Components,” dated June 30, 2020, of Chapter 05, Time Limits/Maintenance Checks, of the Pilatus PC-7 Maintenance Manual, into the Airworthiness Limitations section of your FAA-accepted maintenance program (maintenance manual).
After the Airworthiness Limitations section of the existing maintenance or inspection program has been revised as required by paragraph (f) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (h) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
