Is AD 2011-18-16 a recurring Airworthiness Directive?

Yes — AD 2011-18-16 requires a repetitive inspection every 300 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2011-18-16 apply to?

AD 2011-18-16 applies to Eurocopter — models AS332C, AS332L, AS332L1, AS332L2, AS332. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-18-16

recurring

Official AD 2011-18-16 · FR doc 2011-27673 · 2011-10-27 · airframe

Airworthiness Directives; Eurocopter France (Eurocopter) Model AS332C, AS332L, AS332L1, and AS332L2 Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter model helicopters. This action requires inspecting the upper end fitting ball joints of the main rotor servocontrols for lateral play, and depending on the findings either repetitively inspecting the ball joint or replacing the servocontrol. This amendment is prompted by reports of noncompliant swaging of the end fitting ball joints on main rotor servocontrols. Investigation has shown that the swaging load applied to the ball joints was 1.3 metric tons instead of the specified 13 metric tons. The actions specified in this AD are intended to prevent failure of the upper end fitting ball joints of the main rotor servocontrols, failure of the upper end fittings, and loss of control of the helicopter.

Repetitive inspection. Re-inspect every 300 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2011-18-16 applies to

MakesEurocopter

ModelsAS332C, AS332L, AS332L1, AS332L2, AS332

Serial-conditional — narrows to serials 633–643, 645–659, 664–664, 665–665, 1693–1723, 1726–1726, 1727–1727.

Part-conditional — SC7203-1, SC7221-1.

Applies only to helicopters with main rotor servocontrol P/N SC7203-1 (S/N 633 through 643, 645 through 659, 664, or 665) or P/N SC7221-1 (S/N 1693 through 1723 and 1726 or 1727) installed, which are not marked with a letter 'R' after the S/N.

Whether AD 2011-18-16 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 2011-18-16 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.