airworthiness · Rule · Final rule. · Published 2014-05-09 · Effective 2014-06-13 · 79 FR 26603
Document
Document number
2014-09431
Federal Register citation
79 FR 26603
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Piaggio Aero Industries S.p.A
Publication date
2014-05-09
Effective date
2014-06-13
FAA docket
Docket No. FAA-2013-0967
Abstract
We are superseding Airworthiness Directive (AD) 2009-21-08 R1 for Piaggio Aero Industries S.p.A Model P-180 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 cases of un-commanded operation of switched off nose-wheel steering system caused by internal leakage of a steering select/bypass valve. We are issuing this AD to require actions to address the unsafe condition on these products.