AD 2014-24-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
Excessive play of the lower half scissor spherical bearing in the main rotor rotating scissors, which could lead to bearing dislodgement and failure of the M/R rotating scissors, potentially resulting in loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the main rotor rotating scissors for damage and play of the bearing, replacing the nut with a special nut to reinforce the bearing installation. Remove certain serial-numbered rotating scissors and bearings from service.
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Compliance Time
Within 5 hours time-in-service (TIS) and thereafter every 5 hours TIS for repetitive inspections. Remove affected bearings within 50 hours TIS.
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Affected Aircraft
Agusta S.p.A. Model AB139 and AW139 helicopters with main rotor rotating scissors part number 3G6230A00733, either with certain serial numbers or which have been repaired with certain serial-numbered bearings, P/N 3G6230V00654.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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