Federal Aviation Administration July 26, 2012 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Eurocopter France Helicopters
Document Number: 2012-18256
Type: Proposed Rule
Date: 2012-07-26
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model EC130 B4 helicopters with a cabin vibration damper installed. This proposed AD is prompted by a crack and failure of a cabin vibration damper blade. The proposed actions are intended to modify the cabin vibration damper assembly to prevent contact with the flight controls in the event of a cabin vibration blade failure, jamming of a flight control, and subsequent loss of control of the helicopter.
Airworthiness Directives; Eurocopter Deutschland GmbH Helicopters
Document Number: 2012-18254
Type: Proposed Rule
Date: 2012-07-26
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for the Eurocopter Deutschland GmbH (Eurocopter) Model MBB-BK 117 C-2 helicopters. This proposed AD is prompted by the discovery that some helicopters have blind rivets installed in the place of solid rivets in the long tail rotor drive shaft. The proposed actions are intended to detect blind rivets installed in the long tail rotor drive shaft, which could lead to failure of the tail rotor drive shaft and subsequent loss of control of the helicopter.
Airworthiness Directives; Eurocopter France Helicopters
Document Number: 2012-18253
Type: Proposed Rule
Date: 2012-07-26
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Eurocopter France (Eurocopter) Model AS350BA helicopters with certain AERAZUR emergency flotation gear container assemblies installed. This proposed AD would require replacing each affected emergency flotation gear container assembly (container assembly) at specified time limits based on the date of manufacture. This proposed AD is prompted by a recognition that container assemblies with an intended operating limitation of 10 years may not have been replaced because the limit is no longer recorded in the Maintenance Program. The proposed actions are intended to prevent failure of the emergency container assembly due to age and subsequent damage to the helicopter and injury to the occupants after an emergency water landing.