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Airworthiness Directive

AD 2008-07-01: Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines

Airworthiness Directives; Turbomeca Arriel 1B, 1D, 1D1, and 1S1 Turboshaft Engines

Effective
Apr 30, 2008
Published
Mar 26, 2008
Registered aircraft
171

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Engines

  • TURBOMECA ARRIEL 1B
  • TURBOMECA ARRIEL 1D
  • TURBOMECA ARRIEL 1D1
  • TURBOMECA ARRIEL 1S1
  • Only with: Arriel 1B engines fitted with 2nd stage turbine modification TU 148; Arriel 1D, 1D1, and 1S1 engines that do not incorporate TU 347.
  • Only with: Arriel 1B engines fitted with 2nd stage turbine modification TU 148; Arriel 1D, 1D1, and 1S1 engines that do not incorporate TU 347.

Applicability

From the AD text
This AD applies to Turbomeca Arriel 1B engines fitted with 2nd stage turbine modification TU 148, and Arriel 1D, 1D1, and 1S1 engines that do not incorporate TU 347. Arriel 1B engines are installed on, but not limited to, Eurocopter France AS-350B and AS-350A ``Ecureuil'' helicopters. Arriel 1D engines are installed on, but not limited to, Eurocopter France AS-350B1 ``Ecureuil'' helicopters. Arriel 1D1 engines are installed on, but not limited to, Eurocopter France AS-350B2 ``Ecureuil'' helicopters. Arriel 1S1 engines are installed on, but not limited to, Sikorsky Aircraft S-76A and S-76C helicopters.

Related ADs

Superseded or revised by AD 2010-10-09.

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