Airworthiness Directive · Amendment 39-16436 · Eurocopter France (Eurocopter) Model AS332C, L, L1, and L2 Helicopters
Eurocopter France (Eurocopter) Model AS332C, L, L1, and L2 Helicopters
Model AS332C, L, L1, and L2 helicopters, certificated in any category, with a MESSIER-BUGATTI hydraulic pump, part number C24160045, C24160045-1, C24160045-100, C24160046, C24160046-1, or C24160046-100, installed, which was overhauled or repaired by HELIKOPTER SERVICE, ASTEC HELICOPTER SERVICE, or HELI-ONE on or before February 1, 2010.
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter model helicopters. This action requires replacing each affected hydraulic pump with an airworthy hydraulic pump. This amendment is prompted by the loss of the proper functioning of a hydraulic pump because of the deterioration of the pump seals and the loss of hydraulic fluid caused by incorrect positioning of the piston liner. The actions specified in this AD are intended to prevent loss of hydraulic power and subsequent loss of control of the helicopter.
To prevent loss of the hydraulic power system and subsequent loss of control of the helicopter, do the following:
(a) Replace each affected hydraulic pump with an airworthy hydraulic pump. Do not install any hydraulic pump to which this AD applies unless the hydraulic pump has been overhauled or repaired after February 1, 2010 and is airworthy.
(b) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Contact the Manager; Safety Management Group, Rotorcraft Directorate, FAA, ATTN: Ed Cuevas, Aviation Safety Engineer, 2601 Meacham Blvd., Fort Worth, Texas 76137, telephone (817) 222-5355, fax (817) 222-5961, for information about previously approved alternative methods of compliance.
(c) The Joint Aircraft System/Component (JASC) Code is 2913: Hydraulic Pump.
