AD 2017-23-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
A dislodged bearing of the main rotor (M/R) rotating scissors, specifically bearing part number 3G6230V00654, could lead to premature damage or wear, potentially affecting helicopter controllability.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the M/R rotating scissors for bearing liner wear, seat movement, and play. Replace the bearing with an improved bearing part number 3G6230V00655 if necessary. Replace the rotating scissor attachment flange with a specified part number if required. Replace the nut with a specified special nut part number if not already done.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5 hours time-in-service for initial inspection, followed by every 24 hours for subsequent inspections. Other actions must be completed within 100 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Agusta S.p.A. (now Leonardo Helicopters) Model AB139 and AW139 helicopters with main rotor rotating scissors part number 3G6230A00733 and bearing part number 3G6230V00654 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.