Airworthiness Directive · Amendment 39-13650 · Eurocopter France Model EC 130 B4 and AS 350 B3 Helicopters
Eurocopter France Model EC 130 B4 and AS 350 B3 Helicopters
Model EC 130 B4 helicopters with an optional engine flushing system installed, and AS 350 B3 helicopters with an optional engine flushing system installed and modified in accordance with MOD 073098, certificated in any category.
This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters that requires inspecting the fuel transfer line and air exhaust duct for chafing, inspecting the air exhaust duct for a hole, and if necessary, repositioning the air exhaust duct to achieve the minimum clearances. This amendment is prompted by a report of damage to the fuel transfer line due to wear associated with vibrations and chafing of the fuel transfer line and the air exhaust duct. The actions specified by this AD are intended to detect chafing wear of the air exhaust duct and the fuel transfer line, which could result in a hole in the fuel transfer line, fuel leaking into the engine compartment and creating a fire hazard that could lead to a fire and a subsequent forced landing.
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.
