Airworthiness Directive · Amendment 39-18213 · Main rotor blade grip
Bell Helicopter Textron, Inc.
This AD applies to the following helicopters, certificated in any category:
(1) Bell Model 204B, 205A, and 205A-1 helicopters, with a main rotor (M/R) blade grip (grip) part number (P/N) ASI-4011-121- 113 installed, if the grip was ever installed on a Model 212 helicopter or if it is unknown whether a grip was ever installed on a Model 212 helicopter; and
(2) Bell Model 212 helicopters, with a grip P/N ASI-4011-121-113 installed.
We are adopting a new airworthiness directive (AD) for certain Bell Helicopter Textron, Inc. (Bell), Model 204B, 205A, 205A-1, and 212 helicopters. This AD requires removing a certain part-numbered main rotor (M/R) blade grip (grip) from service. This AD is prompted by an error in a parts manufacturer approval (PMA) that incorrectly allows installation of the grips on the Bell Model 212. The actions specified in this AD are intended to prevent grip failure, separation of the M/R blade, and subsequent loss of control of the helicopter.
You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time.
(1) Within 5 hours time-in-service, remove each grip from service.
(2) Do not install a grip listed in paragraph (a) of this AD on any helicopter.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
