Airworthiness Directive · Amendment 39-10907 · Agusta A109C Helicopters
Agusta A109C Helicopters
Agusta A109C helicopters, all serial numbers (S/ N) through 7670, excluding S/Ns 7630, 7633, 7645, 7651, 7653, 7657, 7661, 7663, 7665, 7667, and 7669, with tail rotor grip assembly (grip assembly), part number (P/N) 109-8131-05-109 or -113, installed, certificated in any category.
This amendment adopts a new airworthiness directive (AD) that is applicable to Agusta A109C helicopters. This action requires, within the next 5 hours time-in-service (TIS), replacing the tail rotor blade grip assemblies (grip assemblies) with modified airworthy grip assemblies. This amendment is prompted by cracks that were found on the grip assemblies during maintenance inspections. This condition, if not corrected, could result in separation of a tail rotor blade and subsequent loss of control of the helicopter.
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.
Aircraft
