Airworthiness Directive · Amendment 39-19022 · Main rotor blade
Agusta S.p.A. Helicopters
This AD applies to Model A109A and A109A II helicopters with a main rotor blade (blade) part number (P/N) 109-0103-01-7, P/N 109-0103-01-9, or P/N 109-0103-01-115 that has 500 or more hours time-in-service (TIS) installed, certificated in any category.
We are superseding Airworthiness Directive (AD) 2015-22-51 for Agusta S.p.A. (Agusta) Model A109A and A109A II helicopters. AD 2015- 22-51 required pre-flight checking and inspecting each main rotor blade (blade) for a crack and replacing any cracked blade. This new AD removes the check and requires inspecting each blade more frequently. This AD is prompted by a crack that was not detected during any of the pre-flight checks. The actions of this AD are intended to address the unsafe condition on these products.
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.
Before further flight, unless already done within the last 5 hours TIS, and thereafter at intervals not to exceed 5 hours TIS:
(1) Using a 3X or higher power magnifying glass, visually inspect the top and bottom surface of each blade for a crack in the area between the station at the end of the doublers (station 1550) and the station at the beginning of the abrasion strip (station 3100).
(2) If there is a crack, replace the blade before further flight. Replacing the blade with blade P/N 109-0103-01-7, P/N 109-0103-01-9, or P/N 109-0103-01-115 does not constitute terminating action for the repetitive inspections required by this AD.
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
