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Airworthiness Directive

AD 2010-11-10: Turbomeca Astazou XIV B and XIV H Turboshaft Engines

Airworthiness Directives; Turbomeca Astazou XIV B and XIV H Turboshaft Engines

Effective
Jul 6, 2010
Published
Jun 1, 2010
Registered aircraft
5

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 ASTAZOU XIV B
  • TURBOMECA ASTAZOU XIV H
  • Serial numbers per Appendix 1 of Turbomeca MSB No. 283 72 0804, Version C (for P/N 0265257050 wheels). Only with: Third stage turbine wheels P/N 0265257000, 0265257020, 0265257060 (all S/Ns) or 0265257050 (listed S/Ns) incorporating modification AB 173 (SB 283 72 0091) or AB 208 (SB 283 72 0117) but not SB 283 72 805.
  • Only with: Third stage turbine wheels P/N 0265257000, 0265257020, 0265257060 (all S/Ns) or 0265257050 (listed S/Ns) incorporating modification AB 173 (SB 283 72 0091) or AB 208 (SB 283 72 0117) but not SB 283 72 805.

Applicability

From the AD text
This AD applies to Turbomeca Astazou XIV B and XIV H turboshaft engines with the following part number (P/N) third stage turbine wheels that incorporate modification AB 173 (Turbomeca Service Bulletin (SB) No. 283 72 0091) or modification AB 208 (Turbomeca SB No. 283 72 0117), but that do not incorporate Turbomeca SB No. 283 72 805: (1) Third stage turbine wheels P/N 0265257000, all serial numbers (S/Ns); (2) Third stage turbine wheels P/N 0265257020, all S/Ns; (3) Third stage turbine wheels P/N 0265257060, all S/Ns; (4) Third stage turbine wheels P/N 0265257050, of the S/Ns listed in Appendix 1 of Turbomeca Mandatory Service Bulletin (MSB) No. 283 72 0804, Version C, dated October 23, 2009. (5) These engines are installed on, but not limited to, single-engine Aerospatiale AS319B ``Alouette III'' and AS342J ``Gazelle'' helicopters.

Related ADs

Superseded or revised by AD 2016-12-07.

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