Airworthiness Directive · Amendment 39-18474 · Main hydraulic system
Airbus Helicopters (Previously Eurocopter France) Helicopters
This AD applies to Airbus Helicopters Model EC225LP, AS332C, AS332L, AS332L1, and AS332L2 helicopters with a TECALEMIT main gear box (MGB) hydraulic flexible hose (hose) installed, certificated in any category.
We are adopting a new airworthiness directive (AD) for Airbus Helicopters Model EC225LP, AS332C, AS332L, AS332L1, and AS332L2 helicopters. This AD requires inspecting each TECALEMIT flexible hydraulic hose (hose) installed in the main gearbox (MGB) compartment and replacing the hose if a crack, cut, or other damage exists. This AD was prompted by reports about the loss of in-flight hydraulic pressure on Eurocopter France helicopters. The actions of this AD are intended to prevent loss of the hydraulic system and consequently, loss of helicopter control.
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 110 hours time-in-service (TIS), and thereafter at intervals not to exceed 110 hours TIS, visually inspect each TECALEMIT hose installed in the MGB compartment for a cut, crack, or other damage.
(2) If there is a cut, crack, or any other damage in the hose sheath that allows you to see the metal braid underneath when pinching or twisting the sheath, replace the hose before further flight.
(3) If there is a cut, crack, or any other damage in the hose sheath on the right hand hydraulic system that does not allow you to see the metal braid underneath, replace the hose within 300 hours TIS.
(4) If there is a cut, crack, or any other damage in the hose sheath on the left hand hydraulic system that does not allow you to see the metal braid underneath, replace the hose within 600 hours TIS.
