Airworthiness Directive · Amendment 39-21294 · Main rotor head
Leonardo S.p.a. Helicopters
This airworthiness directive (AD) applies to Leonardo S.p.a. Model A109E, A109S, A119, AW109SP, and AW119MKII helicopters, certificated in any category, with a main rotor (M/R) floating ring assembly part number (P/N) 109-0111-09-101 or P/N 109-0111-09-103 installed.
The FAA is adopting a new airworthiness directive (AD) for Leonardo S.p.a. (Leonardo) Model A109E, A109S, A119, AW109SP, and AW119MKII helicopters. This AD requires removing certain main rotor (M/ R) floating ring assemblies from service. This AD also prohibits replacing any washer on any M/R floating ring assembly. This AD was prompted by a report of a washer debonding from the M/R floating ring assembly. The actions of this AD are intended to address an unsafe condition on these products.
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 25 hours time-in-service, remove from service any M/R floating ring assembly P/N 109-0111-09-101 or P/N 109-0111-09-103 with serial number (S/N) DA53295148-1, F86782, G130924, J31213, L99, L104, L107, L117, L127, L130, M215, P411, R687, R735, R769, R772, or V71.
(2) After the effective date of this AD:
(i) Do not install any M/R floating ring assembly P/N 109-0111-09-101 or P/N 109-0111-09-103 with S/N DA53295148-1, F86782, G130924, J31213, L99, L104, L107, L117, L127, L130, M215, P411, R687, R735, R769, R772, or V71 on any helicopter.
(ii) Do not replace any washer P/N 109-0111-23-101 on any M/R floating ring assembly installed 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.
Aircraft
