AD 99-21-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS-365N2 | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-360C Dauphin | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365C | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365C1 | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365C2 | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365N | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-365N1 | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
| aircraft | Airbus Helicopters | SA-366G1 | Airworthiness Directives; Eurocopter France Model SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, and SA-366G1 Helicopters |
Unsafe Condition
Loss of electrical continuity between the terminals of a Crouzet single-pole circuit breaker part number 84 400 028 through 84 400 037.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect electrical master box assembly, flotation gear unit assembly, and ground receptacle Crouzet circuit breakers for electrical continuity per applicable service bulletins. Replace any affected circuit breaker with an airworthy one by December 31, 1999. Inspect all remaining Crouzet circuit breakers within 500 hours time-in-service or 6 calendar months.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 hours time-in-service or next 3 calendar months for initial inspection; all remaining breakers within 500 hours or 6 months; replacements by December 31, 1999.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Eurocopter France Models SA-360C, SA-365C, C1, C2, SA-365N, N1, AS-365N2, SA-366G1 with Crouzet single-pole circuit breaker part numbers 84 400 028-037.
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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