# Proposed AD FAA-2011-0018: Pilatus Aircraft Ltd. Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 17, 2012, 77 FR 2238
- Comments due: March 2, 2012
- Docket: FAA-2011-0018 (https://www.regulations.gov/docket/FAA-2011-0018, where comments are filed)
- Project: 2011-CE-042-AD
- FR document: 2012-746
- Official PDF: https://openairdocs.org/files/sha256/bf/c8/bfc8b826db7afd9d655f073d6d28eedbae81200e417fa80ae94a0509d9ce6e3d (from https://www.govinfo.gov/content/pkg/FR-2012-01-17/pdf/2012-746.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/01/17/2012-746/airworthiness-directives-pilatus-aircraft-ltd-airplanes
- Page: https://openairdocs.org/proposed/FAA-2011-0018

## Summary

We propose to adopt a new airworthiness directive (AD) for Pilatus Aircraft Ltd. Models PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/ 350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1- H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 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 loose elevator and rudder hinge bolts caused by incorrect torquing and locking of the bolts could lead to in-flight failure of the elevator or rudder attachment. If not corrected, this failure could result in loss of control of the airplane. We are issuing this proposed AD to require actions to address the unsafe condition on these products.

## Notices in this docket

- Jan 17, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-746, comments due Mar 2, 2012 (https://www.federalregister.gov/documents/2012/01/17/2012-746/airworthiness-directives-pilatus-aircraft-ltd-airplanes)

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