Is AD 2016-05-06 a recurring Airworthiness Directive?

Yes — AD 2016-05-06 requires a repetitive inspection every 10 hours. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2016-05-06

Q: Which aircraft does AD 2016-05-06 apply to?

AD 2016-05-06 applies to Airbus Helicopters — models AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2016-05-06 · FR doc 2016-04678 · 2016-03-04 · airframe

Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters

What this AD requires

We are superseding Airworthiness Directive (AD) 2014-07-52 for certain Airbus Helicopters (previously Eurocopter France) Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2014-07- 52 required repetitively inspecting certain reinforcement angles of the rear structure to tailboom junction frame (reinforcement angles) for a crack at 10 hour time-in-service (TIS) intervals, repairing any cracked reinforcement angle, and allowed an optional repetitive inspection with a 165 hour TIS inspection interval as a terminating action for the 10 hour TIS inspections. This AD retains the inspection requirements of AD 2014-07-52 and requires the inspection of the area around each reinforcement angle screw hole as terminating action to the 10 hour TIS inspections. We are issuing this AD to detect a crack in the reinforcement angle, which if not corrected, could result in loss of the tailboom and subsequent loss of control of the helicopter.

Repetitive inspection. Re-inspect every 10 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 2016-05-06 applies to

MakesAirbus Helicopters

ModelsAS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, AS350, AS355

Part-conditional — 350A08.2493.21, 350A08.2493.23.

Applies only to helicopters with a rear structure to tailboom junction frame reinforcement angle, P/N 350A08.2493.21 or P/N 350A08.2493.23, installed. Helicopters with Modification (MOD) 073232 do not have this part installed and are not affected.

Whether AD 2016-05-06 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 2016-05-06 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.