Is AD 2015-12-01 a recurring Airworthiness Directive?

No — AD 2015-12-01 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2015-12-01 apply to?

AD 2015-12-01 applies to Airbus Helicopters — models AS355E, AS355F, AS355F1, AS355F2, AS355. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2015-12-01

one-time

Official AD 2015-12-01 · FR doc 2015-13851 · 2015-06-09 · appliance

Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for Airbus Helicopters (previously Eurocopter France) Model AS355E, AS355F, AS355F1, and AS355F2 helicopters with a Fueltron flowmeter installed. This AD requires removing each flowmeter, replacing the fuel system hoses, and disabling the electrical connections for the flowmeter installation. This AD was prompted by a report of particle contamination creating an obstruction in a flowmeter which resulted in an uncontrolled flame-out of the engine. The actions of this AD are intended to prevent obstruction of the fuel supply to the flowmeter, which could result in engine flame-out and subsequent loss of control of the helicopter.

Which aircraft AD 2015-12-01 applies to

MakesAirbus Helicopters

ModelsAS355E, AS355F, AS355F1, AS355F2, AS355

Part-conditional — 704A37-670-001.

Applies only when a Fueltron flowmeter P/N 704A37-670-001 is installed.

Whether AD 2015-12-01 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 2015-12-01 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.