Summary
We propose to supersede Airworthiness Directive (AD) 2018-10- 07, which applies to Sikorsky Aircraft Corporation (Sikorsky) Model S- 76C helicopters. AD 2018-10-07 requires inspecting the engine collective position transducer (CPT). Since we issued AD 2018-10-07, we determined that an additional part-numbered engine CPT is affected by the same unsafe condition. This proposed AD would retain the requirements of AD 2018-10-07 and expand the applicability to include the additional engine CPT. We are proposing this AD to address the unsafe condition on these products.