AD 99-02-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS332C | Airworthiness Directives; Eurocopter France Model AS332C, L, and L1 Helicopters |
| aircraft | Airbus Helicopters | AS332L | Airworthiness Directives; Eurocopter France Model AS332C, L, and L1 Helicopters |
| aircraft | Airbus Helicopters | AS332L1 | Airworthiness Directives; Eurocopter France Model AS332C, L, and L1 Helicopters |
Unsafe Condition
Failure of main rotor hub spindles (part numbers 332A31-1390-00 through -07 or 332A31-1398-00) or flapping hinge pins (part number 332A31-1380-all dash numbers) due to increased stiffness of aged frequency adapters, which could result in loss of a main rotor blade and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace spindles and pins according to Eurocopter Service Bulletin 01.00.44, paragraphs 2.B.1)a) through 2.B.1)d) and 2.B.2). Compliance timelines vary based on service time: within 6 months for those in service 12+ years, 18 months for 8-11 years, 3 months for overhauled units with 6+ years since last overhaul, and 15 months for 4-5 years since last overhaul. Specific serial numbers (e.g., spindle FR 25012, pins M 243, FR 139, etc.) must be replaced within 6 or 18 months as noted. Update maintenance manuals with 8-year retirement life limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within specified calendar months based on service duration: 6, 18, 3, or 15 calendar months as outlined in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Model AS332C, L, and L1 helicopters with main rotor hub spindles (P/N 332A31-1390-00 through -07 or 332A31-1398-00) or flapping hinge pins (P/N 332A31-1380-all dash numbers) 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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