Airworthiness Directive 2000-26-11
one-timeAirworthiness Directives; Agusta S.p.A. Model A109E Helicopters
What this AD requires
This amendment adopts a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model A109E helicopters. This action requires replacing certain tail rotor blades with airworthy tail rotor blades. This amendment is prompted by a tail rotor blade (blade) failure that caused a high vibration level in the helicopter. Investigation revealed that the failure was due to a change in the manufacturing process for an identified production lot of blades. This condition, if not corrected, could result in a failure of a blade and subsequent loss of control of the helicopter.
Which aircraft AD 2000-26-11 applies to
Cross-reference boilerplate only; model list precedes excerpt and was not captured. Requires, within 10 hours TIS, replacing each affected main rotor blade (per serial numbers listed in the AD's uncaptured applicability section) with an airworthy blade, P/N 109-8132-01-109 or 109-8132-01-107, bearing a serial number not on that list; references Agusta Bollettino Tecnico No. 109EP-13, dated August 3, 2000, and Italian ENAC AD 2000-393.
Whether AD 2000-26-11 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.