Airworthiness Directive 2010-23-22
one-timeAirworthiness Directives; Eurocopter France (Eurocopter) Model AS332L2 Helicopters
What this AD requires
We are adopting a new airworthiness directive (AD) for the Eurocopter Model AS332L2 helicopters. This AD results from a mandatory continuing airworthiness information (MCAI) AD issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI AD states that a hard landing occurred during in-flight engine failure (one engine inoperative (OEI)) training. An examination revealed the failure of the right-hand main reduction gear module (module) freewheel unit due to excessive wear on some of its components. The MCAI AD prohibits engine failure OEI training with helicopters on which certain main gearbox (MGB) modules with certain freewheel shafts are installed and mandates the replacement of those modules. The actions are intended to prevent failure of certain freewheel units, loss of power to the main rotor system, and subsequent loss of control of the helicopter.
Which aircraft AD 2010-23-22 applies to
Applies only to AS332L2 helicopters, certificated in any category, with freewheel shaft P/N 332A32-2190-25 (No. 1 and No. 2 serial-numbered shafts) installed on a main gearbox (MGB) main reduction gear module bearing a specific P/N and serial number per the AD's table (e.g., shaft S/N M1608/M945 paired with module P/N 332A32-3011-03M S/N M2062; module P/N 332A32-3011-01M S/N M2044 also listed). AD prohibits one-engine-inoperative training and mandates module replacement for affected combinations.
Whether AD 2010-23-22 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.