Airworthiness Directive 2005-26-13
recurringAirworthiness Directives; Turbomeca Artouste III Series Turboshaft Engines
What this AD requires
The FAA is superseding an existing airworthiness directive (AD) for Turbomeca Artouste III series turboshaft engines. That AD currently requires smoke emission checks after every ground engine shutdown, and if necessary, additional checks and possibly removing the engine from service. That action also requires inspection of central labyrinths not previously inspected, or not replaced after the engine logged 1,500 operating hours, and, replacement if necessary. That action also requires the removal of injection wheels at a new lower life limit. This AD includes the same requirements as AD 2002-22-11, but reduces the compliance time for the initial inspection of the central labyrinth and adds repetitive inspections of the central labyrinth. This AD results from reports and analyses of in-flight engine shutdowns occurring since we issued AD 2002-22-11. We are issuing this AD to prevent injection wheel cracks and excessive central labyrinth wear, which could result in an in-flight engine shutdown and possible loss of the helicopter.
Which aircraft AD 2005-26-13 applies to
Applies only to engines with injection wheels of the listed part numbers installed.
Whether AD 2005-26-13 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:
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.