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Airworthiness Directive 2010-22-08

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Official AD 2010-22-08 · FR doc 2010-26565 · 2010-10-22 · airframe

Airworthiness Directives; Eurocopter France Model AS 350 B, BA, B1, B2, B3, and D, and Model AS355 E, F, F1, F2, and N Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for the Eurocopter France Model AS 350 B, BA, B1, B2, B3, and D, and Model AS355 E, F, F1, F2, and N helicopters, with certain main rotor servo- controls and tail rotor servo-controls. This AD requires replacing all servo-controls that are identified in the Applicability section of this AD. This AD is prompted by an internal review conducted by the manufacturer which revealed that some main and tail rotor servo- controls do not conform to the approved design. The actions specified by this AD are intended to prevent the distributor slide valve jamming in its sleeve, leading to reduced controllability of the rotors and subsequent loss of control of the helicopter.

Which aircraft AD 2010-22-08 applies to

Applicability depends on the aircraft’s type certificate — check it against the specific tail.

Whether AD 2010-22-08 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 2010-22-08 complied with on your aircraft?

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.