Airworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters
airworthiness · Rule · Final rule; request for comments. · Published 2000-03-30 · Effective 2000-04-14 · 65 FR 16804
Document
Document number
00-7552
Federal Register citation
65 FR 16804
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Bell Helicopter Textron Canada Model 407
Publication date
2000-03-30
Effective date
2000-04-14
FAA docket
Docket No. 99-SW-75-AD
Abstract
This amendment adopts a new airworthiness directive (AD) applicable to Bell Helicopter Textron Canada (BHTC) Model 407 helicopters. This action requires preflight checking and repetitively inspecting the tail boom for a crack and replacing the tail boom if a crack is found. This amendment is prompted by four reports of cracks on the tail boom in the area of the horizontal stabilizer. The actions specified in this AD are intended to prevent separation of the tail boom and subsequent loss of control of the helicopter.