Is AD 2011-16-05 a recurring Airworthiness Directive?

No — AD 2011-16-05 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2011-16-05 apply to?

AD 2011-16-05 applies to Eurocopter — models SA-365N, SA-365N1, SA-365. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2011-16-05

one-time

Official AD 2011-16-05 · FR doc 2011-21477 · 2011-08-26 · airframe

Airworthiness Directives; Eurocopter France Model SA-365N and SA-365N1 Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) for the specified Eurocopter France (Eurocopter) model helicopters. This action requires you to disconnect the high level fuel switches in the fuel tanks on the affected helicopters. In addition, for helicopters without a crossfeed between the fuel filler necks, you must install a placard on or near the center console fuel panel that specifies fuel transfer limitations. This amendment is prompted by a report that a high level fuel switch probe unit installed on a Model SA-365N helicopter in the rear (right-hand) auxiliary fuel tank group separated, causing damage to the insulation of the electrical wires which supply electrical power to the high level indicator light on the fuel control panel during a fuel transfer. This condition, if not corrected, could lead to exposure of the electrical wires, which could lead to a short circuit and activation of the indicator light without the high fuel level actually being reached. Additionally, a short circuit could become an ignition source inside the fuel tank, and result in a fuel tank explosion and subsequent loss of control of the helicopter.

Which aircraft AD 2011-16-05 applies to

MakesEurocopter

ModelsSA-365N, SA-365N1, SA-365

Applies to all serial numbers except helicopters with a crossfeed between the fuel filler necks in which the two fuel tank high level fuel switches have been removed in accordance with modification kit 365A087690.00 or modification 0728B17. Certificated in any category.

Whether AD 2011-16-05 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 2011-16-05 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.