Is AD 2017-26-04 a recurring Airworthiness Directive?

Yes — AD 2017-26-04 requires a repetitive inspection every 13 months. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2017-26-04 apply to?

AD 2017-26-04 applies to Airbus Helicopters — models EC120B, EC120. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2017-26-04

recurring

Official AD 2017-26-04 · FR doc 2017-27274 · 2017-12-20 · appliance

Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France)

What this AD requires

We are superseding Airworthiness Directive (AD) 2009-25-07 for Airbus Helicopters Model EC120B helicopters. AD 2009-25-07 required amending the rotorcraft flight manual supplement (RFMS) and pre-flight checking the emergency flotation gear before each flight over water. Since we issued AD 2009-25-07, Airbus Helicopters developed a terminating action and identified an additional part- numbered emergency floatation gear part with the unsafe condition. This new AD retains the requirements of AD 2009-25-07, expands the applicability, and adds a terminating action for the repetitive inspections. The actions of this AD are intended to correct an unsafe condition on these helicopters.

Repetitive inspection. Re-inspect every 13 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2017-26-04 applies to

MakesAirbus Helicopters

ModelsEC120B, EC120

Part-conditional — 040101AB, 040101BA, 045004A111A.

Applies only if a Lighting and Ancillary Control Unit (LACU) P/N 040101AB or 040101BA with a float arm pushbutton P/N 045004A111A is installed.

Whether AD 2017-26-04 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 2017-26-04 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.