AD 2016-01-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
Separation of the mounting flange from the slip ring body due to improperly low torque of the affected screws during installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each slip ring for chatter marks, witness marks, or scoring. Replace the slip ring if any are found. Determine the depth of the mounting hole and replace the slip ring if the depth exceeds the grip length of the screw. Re-identify the slip ring by marking a letter 'T' after the serial number with permanent black pen and applying acrylic lacquer.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 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. Model AB139 and AW139 helicopters with certain slip rings installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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