Summary
We propose to revise airworthiness directive (AD) 2015-12-09 for Airbus Helicopters Model EC135P1, EC135T1, EC135P2, EC135T2, EC135P2+, EC135T2+, and MBB-BK 117 C-2 helicopters. AD 2015-12-09 currently requires inspecting certain washers for movement and making the appropriate repairs if the washers move. As published, AD 2015-12- 09 references an incorrect date for the service information in the Credit for Previous Actions section. This proposed AD would correct the error while retaining the requirements of AD 2015-12-09. These proposed actions are intended to prevent loss of concerned control axis and subsequent loss of control of the helicopter.