# Proposed AD FAA-2020-1074: Pilatus Aircraft Ltd. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-11-12
- Products: Pilatus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 26, 2021, 86 FR 16124
- Comments due: May 10, 2021
- Became: [AD 2021-11-12](https://openairdocs.org/ad/2021-11-12)
- Docket: FAA-2020-1074 (https://www.regulations.gov/docket/FAA-2020-1074, where comments are filed)
- Project: MCAI-2020-01257-A
- FR document: 2021-05944
- Official PDF: https://openairdocs.org/files/sha256/eb/0f/eb0fa79132b1b059c9672d64d1db03aa3a0fc56d22bf5b56638061bd4803292f (from https://www.govinfo.gov/content/pkg/FR-2021-03-26/pdf/2021-05944.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/03/26/2021-05944/airworthiness-directives-pilatus-aircraft-ltd-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6C9BB1195954ED1D862586A4007B305B.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1074

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. This proposed 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. The MCAI identifies the unsafe condition as the engine attachment hardware not conforming to the approved design, which could affect the structural integrity of the airplane. This proposed AD would require inspecting the engine attachment hardware for missing washers and loose nuts and taking corrective actions as necessary. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 26, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-05944, comments due May 10, 2021 (https://www.federalregister.gov/documents/2021/03/26/2021-05944/airworthiness-directives-pilatus-aircraft-ltd-airplanes)

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