AD 2013-25-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | Various | Airworthiness Directives; AgustaWestland S.p.A. (Type Certificate Previously Held by Agusta S.p.A.) Helicopters |
Unsafe Condition
An incorrect installation of an NLG pin, which could result in collapse of the NLG during taxi or landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 50 hours time-in-service, inspect the NLG pin installations on the left and right arms to ensure correct installation of the bolt, washers, pin, and nut. If any part is not correctly installed, disassemble the components and inspect for corrosion, cracks, or damage. Replace any corroded, cracked, or damaged parts as necessary.
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Compliance Time
Within 50 hours time-in-service
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Affected Aircraft
AgustaWestland S.p.A. Model AB139 and AW139 helicopters, serial numbers 31005, 31006, 31008 through 31157, 31201 through 31398, 31400 through 31412, 31414, 31416, 31418, 31419, 31421, 31425, 31426, 31428, 31432, 31440, 41001 through 41023, 41201 through 41275, 41277 through 41286, 41288, 41293, 41300, 41301, 41303, 41307, 41308, and 41310, with a nose landing gear (NLG) pin part number 1661-0001 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
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