AD 99-09-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | SA 3180-Alouette Astazou | Airworthiness Directives; Eurocopter France (Eurocopter) Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C Helicopters |
| aircraft | Airbus Helicopters | SA 318B-Alouette Astazou | Airworthiness Directives; Eurocopter France (Eurocopter) Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C Helicopters |
| aircraft | Airbus Helicopters | SA 318C-Alouette Astazou | Airworthiness Directives; Eurocopter France (Eurocopter) Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C Helicopters |
| aircraft | Airbus Helicopters | SE 3130-Alouette II | Airworthiness Directives; Eurocopter France (Eurocopter) Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C Helicopters |
| aircraft | Airbus Helicopters | SE 313B-Alouette II | Airworthiness Directives; Eurocopter France (Eurocopter) Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C Helicopters |
Unsafe Condition
Failure of a main rotor blade in flight due to bonding separation, cracks, or corrosion in the blade spar skin and blade root reinforcement area.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each blade spar skin and blade root reinforcement area using a tapping method for bonding separation, cracks, or corrosion. Replace the blade with an airworthy blade if any defects are found. Inspections must be done before further flight and every 100 hours TIS or 6 months, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter Model SE 3130, SE 313B, SA 3180, SA 318B, and SA 318C helicopters with main rotor blades part numbers 3130S11-10000, 20000, or 30000.
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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