AD 2024-25-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Deutschland GmbH | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
Unsafe Condition
A worn tail rotor actuator bolt could result in failure of a tail rotor actuator bolt, loss of tail rotor control, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Repetitively inspect the bolted joint between the cardan-pivot joint assembly and the tail rotor actuator piston rod. Depending on the results, contact Airbus Helicopters to obtain applicable repair instructions and accomplish those instructions within the compliance time specified within. Prohibit installing tail rotor actuator part number B673M40A1002 on any helicopter unless it is new, or the inspection is done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters with tail rotor actuator part number B673M40A1002 installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.