Airworthiness Directive · Amendment 39-13198 · Agusta S.p.A. Model A109K2 Helicopters
Agusta S.p.A. Model A109K2 Helicopters
Model A109K2 helicopters with tail rotor blades (blades), part number (P/N) 109-8132-01-107, having 1,500 or more hours time-in-service (TIS), installed, certificated in any category.
This amendment adopts a new airworthiness directive (AD) for Agusta S.p.A (Agusta) Model A109K2 helicopters. This action requires a visual check of each tail rotor blade (blade) for a crack; a visual inspection of each blade for a crack at specified intervals; and if necessary, a dye-penetrant inspection. Replacing any cracked blade with an airworthy blade before further flight is also required. This amendment is prompted by a report of a crack that occurred on an Agusta Model A109K2 blade. The actions specified in this AD are intended to detect fatigue cracks on the blades, which could result in loss of the blades and loss of control of the helicopter.
