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Fri, Jul 06, 2018

AD: Safran Helicopter Engines, S.A., Turboshaft Engines

AD NUMBER: 2018-12-03

PRODUCT: All Safran Helicopter Engines, S.A., Arrius 2B1 and 2F turboshaft engines.

ACTION: Final Rule.

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2013-11-09 for the engine listed above.

AD 2013-11-09 required the repetitive replacement of the fuel injector manifolds and privilege injector, or only the privilege injector.

This AD retains the repetitive hardware replacement requirements of AD 2013-11-09, but only allows replacement pipe injector preferred assembly, part number (P/N) 0 319 73 044 0, on the Arrius 2F engines.

This AD was prompted by reports of engine flameouts as a result of reduced fuel flow due to the presence of coking.

DATES: This AD is effective August 9, 2018.

COST: The FAA estimates that this AD affects 50 Arrius 2B1 and 105 Arrius 2F turboshaft engines installed on helicopters of U.S. registry. The costs of compliance are estimated as follows:

  • Arrius 2B1 fuel injector manifolds and injector replacement: $255 per aircraft for three hours labor
  • Arrius 2F pipe injector preferred assembly replacement: #3,409 per aircraft for parts and labor
FMI: AD

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