AD 2012-18-09
Effective 10/22/2012 · Published 09/17/2012
Airworthiness Directives; Bell Helicopter Textron Canada Helicopters
Summary
We are adopting a new airworthiness directive (AD) for the Bell Helicopter Textron Canada Limited (BHTC) Model 407 helicopters. This AD requires you to replace tailboom-attachment hardware (attachment hardware), and perform initial and recurring determinations of the torque on the nuts of the tailboom-attachment bolts (bolts) at all four attachment locations. This AD was prompted by a review of the tailboom-attachme…