AD 98-05-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS-365N2 | Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365N | Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365N1 | Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-366G1 | Airworthiness Directives; Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 Helicopters |
Unsafe Condition
Outboard fin separation from the helicopter during flight due to rotational play or looseness of the outboard fin attachment studs and washers, which could result in contact with rotor blades and subsequent loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for rotational play or looseness of the outboard fin attachment studs and washers (if present); inspect each stud for incremental rotational movement or pure rotation; perform dye-penetrant inspection for cracks on any stud with detected looseness, and replace cracked studs.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 50 flying hours
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Model SA-365N, SA-365N1, AS-365N2, and SA-366G1 helicopters, certificated in any category.
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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