The Federal Aviation Administration (FAA) has issued a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters to address a safety issue. This directive requires repetitive inspections of a critical joint between the cardan-pivot joint assembly and the tail rotor actuator piston rod, following reports of vibrations that could lead to a loss of control of the helicopter. Certain tail rotor actuators are prohibited from being installed unless specific requirements are met. The AD, which follows an emergency directive previously issued, is effective January 17, 2025, and comments are invited by February 18, 2025.
Simple Explanation
The FAA wants to make sure that certain helicopters are safe, so they are asking people who own these helicopters to keep checking a special part to make sure it’s not broken and to fix it if needed. They also want to make sure that some parts aren’t used unless they’re safe, and this needs to be done starting January 2025.