airworthiness · Rule · Final rule. · Published 2012-11-09 · Effective 2012-12-14 · 77 FR 67261
Document
Document number
2012-26901
Federal Register citation
77 FR 67261
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2012-11-09
Effective date
2012-12-14
FAA docket
Docket No. FAA-2012-0502
Abstract
We are adopting a new airworthiness directive (AD) for Aeronautical Accessories, Inc. (AAI) high landing gear forward crosstube assemblies (crosstubes) installed on Agusta S.p.A. (Agusta) Model AB412 and AB412EP; and Bell Helicopter Textron, Inc. (Bell) Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP helicopters during production or based on a supplemental type certificate (STC). This AD requires counting and recording the total number of landings for the crosstubes, and inspecting the crosstubes and replacing them if a crack or other damage exists. This AD was prompted by two reports from the field of failed crosstubes. The actions are intended to prevent failure of a crosstube, collapse of the landing gear, and subsequent loss of control of the helicopter.