AircraftDirectives
Airworthiness Directive

AD 2012-02-51 Amendment 39-17016

Federal Aviation Administration · 14 CFR part 39

FR document
2012-9314
Amendment
39-17016
Published
2012-04-19
Models covered
1
Last live check
Not yet re-verified

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AD

2012-02-51

FR doc 2012-9314

AD 2012-02-51Published 2012-04-19Effective 2012-05-04

Prompted by two accidents and the subsequent investigations that revealed that, in each accident, a main rotor blade failed because of fatigue cracking.

Full official abstract

We are publishing a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (Bell) Model 206L, 206L-1, 206L-3, and 206L-4 helicopters with certain main rotor blades installed to reduce the life limit of those blades. This AD is prompted by two accidents and the subsequent investigations that revealed that, in each accident, a main rotor blade failed because of fatigue cracking. These actions are intended to prevent failure of the main rotor blade and subsequent loss of control of the helicopter.

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Applies to 1 model in our index