airworthiness · Rule · Final rule. · Published 2012-03-30 · Effective 2012-05-04 · 77 FR 19061
Document
Document number
2012-6999
Federal Register citation
77 FR 19061
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Pilatus
Publication date
2012-03-30
Effective date
2012-05-04
FAA docket
Docket No. FAA-2012-0018
Abstract
We are adopting 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 AD results from mandatory continuing airworthiness information (MCAI) issued 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, which could lead to in-flight failure of the elevator or rudder attachment. We are issuing this AD to require actions to address the unsafe condition on these products.