AD 99-23-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS332C | Airworthiness Directives; Eurocopter France Model AS 332C, L, and L1 Helicopters |
| aircraft | Airbus Helicopters | AS332L | Airworthiness Directives; Eurocopter France Model AS 332C, L, and L1 Helicopters |
| aircraft | Airbus Helicopters | AS332L1 | Airworthiness Directives; Eurocopter France Model AS 332C, L, and L1 Helicopters |
Unsafe Condition
Interference between the main gearbox epicyclic module attachment bolts and the 2nd stage planet gear cage web, which could cause failure of the second stage planet gear, loss of main rotor drive, 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
Inspect the length of the main gearbox epicyclic module upper casing bearing attachment bolts. If any bolt exceeds 53mm (2.086 inches) in length, remove and replace the epicyclic module before further flight. Compliance must follow Eurocopter Service Bulletin No. 01.41 (95-11).
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight if bolts exceed specified length
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Affected Aircraft
Eurocopter France Model AS 332C, L, and L1 helicopters with epicyclic modules part number 332A32-2007-00 or -01, serial numbers prefixed 'M' from 100-689 or 3000-3048.
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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