Airworthiness Directive · Amendment 39-13294 · Eurocopter France Model EC 155B, SA-365N and N1, AS-365N2, and AS 365 N3 Helicopters
Eurocopter France Model EC 155B, SA-365N and N1, AS-365N2, and AS 365 N3 Helicopters
Superseded. A later AD replaced this one: AD 2005-13-23. Comply with the one in force.
Model EC 155B, SA-365N and N1, AS-365N2, and AS 365 N3 helicopters, with emergency flotation gear installed, certificated in any category.
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters that requires inspecting the hydraulic brake hose (hose) for crazing, pinching, distortion, or leaks at the torque link hinge and replacing the hose, if necessary. This amendment also requires inspecting the hose and the emergency flotation gear pipe to ensure adequate clearance, and adjusting the landing gear leg, if necessary. This amendment is prompted by a report of a hose compression due to interference with a clamp that attaches the emergency flotation gear pipe. The actions specified by this AD are intended to prevent failure of the hose, resulting in failure of hydraulic pressure to the brakes on the affected landing gear wheel, and subsequent loss of control of the helicopter during a run-on landing.
