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Airworthiness Directive

AD 2016-12-07: Turbomeca S.A. Turboshaft Engines

Airworthiness Directives; Turbomeca S.A. Turboshaft Engines

Effective
Jul 26, 2016
Published
Jun 21, 2016
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 2.1 of Turbomeca S.A. MSB No. 283 72 0804, Version D (for P/N 0 265 25 705 0 wheels). Only with: Third stage turbine wheels P/N 0 265 25 700 0, 0 265 25 702 0, 0 265 25 706 0 (all S/Ns) or P/N 0 265 25 705 0 (S/Ns listed in MSB) installed, incorporating modification AB 173 (SB 283 72 0091) or AB 208 (SB 283 72 0117); excludes wheels incorporating SB 283 72 805.
  • Only with: Third stage turbine wheels P/N 0 265 25 700 0, 0 265 25 702 0, 0 265 25 706 0 (all S/Ns) or P/N 0 265 25 705 0 (S/Ns listed in MSB) installed, incorporating modification AB 173 (SB 283 72 0091) or AB 208 (SB 283 72 0117); excludes wheels incorporating SB 283 72 805.

Applicability

From the AD text
This AD applies to Turbomeca S.A., Astazou XIV B and XIV H turboshaft engines with the following part number (P/N) and serial number (S/N) third stage turbine wheels that incorporate modification AB 173 (Turbomeca S.A. Service Bulletin (SB) No. 283 72 0091) or modification AB 208 (Turbomeca S.A. SB No. 283 72 0117). This AD does not apply to third stage turbine wheels that incorporate Turbomeca S.A. SB No. 283 72 805. (1) Third stage turbine wheels, P/N 0 265 25 700 0, all S/Ns; (2) Third stage turbine wheels, P/N 0 265 25 702 0, all S/Ns; (3) Third stage turbine wheels, P/N 0 265 25 706 0, all S/Ns; (4) Third stage turbine wheels, P/N 0 265 25 705 0, with an S/N listed in Appendix 2.1 of Turbomeca S.A. Mandatory Service Bulletin (MSB) No. 283 72 0804, Version D, dated July 24, 2015.

Related ADs

Supersedes or revises AD 2010-11-10.

Read the AD in the Federal RegisterReport an error on this page