Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters
airworthiness · Rule · Final rule. · Published 2014-01-31 · Effective 2014-03-07 · 79 FR 5249
Document
Document number
2014-01466
Federal Register citation
79 FR 5249
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Bell Helicopter Textron Canada Limited (Bell)
Publication date
2014-01-31
Effective date
2014-03-07
FAA docket
Docket No. FAA-2013-0525
Abstract
We are adopting a new airworthiness directive (AD) for Bell Model 206L, L-1, L-3, and L-4 helicopters. This AD requires measuring each main rotor (M/R) blade spar space to determine whether it is oversized and reidentifying the M/R blade and reducing the life limit of the blade if the spar spacer is oversized. This AD was prompted by the manufacture of certain blades with an oversized spar spacer and the determination to reduce the life limits of those blades. The actions of this AD are intended to prevent failure of an M/R blade and subsequent loss of control of the helicopter.