airworthiness · Rule · Final rule; request for comments. · Published 2012-01-24 · Effective 2012-02-08 · 77 FR 3382
Document
Document number
2012-366
Federal Register citation
77 FR 3382
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Agusta S.p.A.
Publication date
2012-01-24
Effective date
2012-02-08
FAA docket
Docket No. FAA-2011-1454
Abstract
We are adopting a new airworthiness directive (AD) for all Agusta S.p.A. (Agusta) model A109S and AW109SP helicopters. This AD is prompted by a fatigue crack found in the left elevator assembly along the riveting of the upper skin to the fourth rib on an Agusta A109S helicopter. These actions are intended to detect a crack, which could lead to a failure of the elevator, reduced maneuverability of the helicopter, and subsequent loss of control of the helicopter.