AD 99-08-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | SA.316B Alouette III | Airworthiness Directives; Eurocopter France Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters |
| aircraft | Airbus Helicopters | SA.316C Alouette III | Airworthiness Directives; Eurocopter France Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters |
| aircraft | Airbus Helicopters | SA.319B Alouette III | Airworthiness Directives; Eurocopter France Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters |
| aircraft | Airbus Helicopters | SE.3160 Alouette III | Airworthiness Directives; Eurocopter France Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters |
Unsafe Condition
Bonding separation, corrosion, or cracks in the spar skin and main rotor blade root reinforcement strip area could result in blade failure 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 spar skin and blade root reinforcement strip area for bonding separation, corrosion, or cracks using a tapping method and visual inspection with a 3- to 7-power magnifying glass. Replace the blade if any separation, corrosion, or cracks are found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight for initial inspection, and repetitively at intervals not exceeding 100 flight hours or 6 calendar months, whichever comes first.
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Affected Aircraft
Eurocopter France Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B helicopters with specified main rotor blade part 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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