AD/S-76/2 - Engine Oil Filler Service Door - Modification - CANCELLED

This Airworthiness Directive (AD) cancels an earlier safety requirement for Sikorsky S-76 helicopters. The original 1979 directive required owners to modify the engine oil filler service door to add a backup locking method within 100 hours of flight time. This instrument removes that requirement because every affected helicopter was modified decades ago, making the rule unnecessary.