# Proposed AD FAA-2020-0813: Pilatus Aircraft Limited Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-02-04
- Products: Pilatus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 16, 2020, 85 FR 57804
- Comments due: November 2, 2020
- Became: [AD 2021-02-04](https://openairdocs.org/ad/2021-02-04)
- Docket: FAA-2020-0813 (https://www.regulations.gov/docket/FAA-2020-0813, where comments are filed)
- FR document: 2020-20310
- Official PDF: https://openairdocs.org/files/sha256/31/24/3124622577ffac163bb82351bf384c809602212923de94c6a0dcf0a60f5447af (from https://www.govinfo.gov/content/pkg/FR-2020-09-16/pdf/2020-20310.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/09/16/2020-20310/airworthiness-directives-pilatus-aircraft-limited-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5912BB58A4356BBD862585E5004EA143.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0813

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Pilatus Aircraft Limited Model PC-12/47E 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 describes the unsafe condition as inboard flap fairings aft (IFFAs) having an incorrect shape, which may result in chafing between the IFFA and the associated front inboard tension rod could occur. This proposed AD would require an inspection of the IFFAs for the correct shape and chafing between the IFFA and the associated front inboard tension rod, with corrective action as necessary. This condition could lead to failure of the inboard flap drive arm with consequent asymmetric flap extension, resulting in reduced control of the airplane. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 16, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-20310, comments due Nov 2, 2020 (https://www.federalregister.gov/documents/2020/09/16/2020-20310/airworthiness-directives-pilatus-aircraft-limited-airplanes)

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