Is AD 2009-22-04 a recurring Airworthiness Directive?

No — AD 2009-22-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2009-22-04 apply to?

AD 2009-22-04 applies to Eurocopter — models EC155B, EC155B1, EC155. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2009-22-04

one-time

Official AD 2009-22-04 · FR doc E9-25441 · 2009-10-28 · airframe

Airworthiness Directives; Eurocopter France (ECF) Model EC 155B and EC155B1 Helicopters

What this AD requires

We are adopting a new airworthiness directive (AD) for the specified ECF model helicopters. This AD results from a mandatory continuing airworthiness information (MCAI) AD issued by the European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community. The MCAI AD states that freezing of the route display on the navigation display (ND) in the Sector mode occurs for flight plans that include procedures in the terminal zone (departure or arrival). The MCAI AD prohibits the use of the UNS-1D navigation system (also known as the Flight Management System (FMS)) for Standard Instrument Departure (SID), Standard Instrument Terminal Arrival Route (STAR), and instrument approach procedures. The actions are intended to prevent the flight crew from relying on a frozen route ND, unanticipated increases in flight crew workload, pilot confusion in the terminal airspace environment, and subsequent loss of control of the helicopter.

Which aircraft AD 2009-22-04 applies to

MakesEurocopter

ModelsEC155B, EC155B1, EC155

Applies to all serial numbers of Model EC155B and EC155B1 helicopters with the UNS-1D navigation system (Flight Management System) installed.

Whether AD 2009-22-04 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 2009-22-04 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.