# Proposed AD FAA-2008-0493: Pilatus Aircraft Ltd. PC-6 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Pilatus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 1, 2008, 73 FR 23993
- Comments due: June 2, 2008
- Docket: FAA-2008-0493 (https://www.regulations.gov/docket/FAA-2008-0493, where comments are filed)
- Project: 2008-CE-028-AD
- FR document: E8-9589
- Official PDF: https://openairdocs.org/files/sha256/7c/76/7c7664782011e37871afcda6d20238f7d5040aeb0e7d71d94532f07711c95711 (from https://www.govinfo.gov/content/pkg/FR-2008-05-01/pdf/E8-9589.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/05/01/E8-9589/airworthiness-directives-pilatus-aircraft-ltd-pc-6-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0759DDF9A40BAB668625743C00586C11.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0493

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. 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:

This Airworthiness Directive (AD) is prompted due to a potential problem with the tail landing gear locking mechanism of PC-6 series aircraft. Investigation, carried out after an incident report, determined that both screws of the tail-wheel locking mechanism had ruptured, rendering the mechanism inoperative.

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- May 1, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-9589, comments due Jun 2, 2008 (https://www.federalregister.gov/documents/2008/05/01/E8-9589/airworthiness-directives-pilatus-aircraft-ltd-pc-6-series-airplanes)

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