Manufacturer
Sikorsky
Number
FAA 2019-19-12
Model(s)
S-76C
Published Date
Effective Date
Summary
Supersedes but retains requirements of AD 2018-10-07—which specifies a one-time inspection of total resistance, linearity resistant movement, excitation voltage, and differential voltage of the engine collective position transducer (CPT), and replacement if necessary—and expands the applicability. This latest AD was prompted by the FAA's determination that an additional part-numbered engine CPT is affected by the same unsafe condition. Original AD was prompted by reports of wear of the CPT that has resulted in several one engine inoperative (OEI) incidents due to CPT failure.
UUID
189