Airworthiness Directive · Amendment 39-17781 · Fuselage main, keel
Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) (Airbus Helicopters)
This AD applies to Airbus Helicopters Model AS332L1 helicopters with the following serial numbers, certificated in any category: 2635, 2641, 2644, 9007, 9008, and 9009.
We are adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS332L1 helicopters. This AD requires replacing the rivets on the left-hand (LH) and right-hand (RH) Y350 longitudinal beams (longitudinal beams Y350). This AD was prompted by a report that non-conforming rivets had been installed on an AS332 helicopter during a production modification. The actions of this AD are intended to prevent failure of the longitudinal beams Y350 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.
Within 10 hours time-in-service, replace the 3.2 mm rivets, part-number (P/N) 21215DC3200J, of the RH and LH longitudinal beams Y350 of the bottom structure with 4.8 mm rivets, P/N 21215DC4800J, as shown in Figures 2 and 3 of Eurocopter Emergency Alert Service Bulletin No. 01.00.81, Revision 0, dated March 19, 2012.
