AD 80-10-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105A | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO-105 Series Helicopters |
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105C | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO-105 Series Helicopters |
| aircraft | Airbus Helicopters Deutschland GmbH | BO-105S | Airworthiness Directives; MESSERSCHMITT-BOLKOW-BLOHM Model BO-105 Series Helicopters |
Unsafe Condition
Failure of the tail rotor system due to cracks in the inner surface of the tail rotor blade grip clevis area or in the vicinity of the bore of the laminated pack retaining bolt.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the visible part of the inner surface of the tail rotor blade grip clevis area using dye penetrant method; inspect inboard end of tail rotor blade grip visually; replace cracked blade grips before further flight; comply with repetitive inspections at specified intervals.
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Compliance Time
Within the next 10 hours time in service after the effective date, unless already accomplished within the last 90 hours time in service, and thereafter at intervals not to exceed 100 hours time in service.
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Affected Aircraft
MESSERSCHMITT-BOLKOW-BLOHM Model BO-105A, BO-105C, BO-105S helicopters with tail rotor blade grip P/N 105-31711 or P/N 105-31722 installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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