Airworthiness Directive · Amendment 39-9053 · Agusta S.p.A. Helicopters
Agusta S.p.A. Helicopters
This AD applies to Agusta S.p.A. A109A, A109A II.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment supersedes an existing airworthiness directive (AD), applicable to Costruzioni Aeronautiche Giovanni Agusta S.p.A. Model A109A and A109AII series helicopters, that currently imposes a calendar life limit of 10 years and 6 months on the main rotor retention strap assemblies (strap assemblies). This amendment requires reducing the calendar life limit to 8 years. This amendment is prompted by additional service experience and analyses, that show the current life limit needs to be reduced from 10 years and 6 months to 8 years to prevent deterioration and subsequent failure of the strap assemblies. The actions specified by this AD are intended to prevent failure of the strap assemblies, loss of a main 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
