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Wed, May 23, 2018

AD: Sikorsky Aircraft Corporation

AD NUMBER: 2018-10-07

PRODUCT: Sikorsky Aircraft Corporation (Sikorsky) Model S-76C helicopters.

ACTION: Final Rule.

SUMMARY: This AD requires inspecting the engine collective position transducer (CPT).

This AD was prompted by reports of wear of the CPT that has resulted in several One Engine Inoperative (OEI) incidents.

The actions of this AD are intended to detect and prevent an unsafe condition on these products.

DATES: This AD is effective June 25, 2018.

COST: The FAA estimates that this AD affects 90 helicopters of U.S. Registry. The costs of compliance are estimated as follows:

  • Labor costs are estimated at $85 per workhour. The inspections will take about 3.75 work-hours for an estimated cost of $319 per helicopter
  • Replacing a CPT will take about 6 work-hours and parts will cost $3,072 for an estimated replacement cost of $3,582 per helicopter
FMI: AD

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