AD 81-26-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | SA-360C Dauphin | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA365C Series Helicopters |
| aircraft | Airbus Helicopters | SA-365C | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA365C Series Helicopters |
| aircraft | Airbus Helicopters | SA-365C1 | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA365C Series Helicopters |
| aircraft | Airbus Helicopters | SA-365C2 | Airworthiness Directives; SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS) Models SA360C and SA365C Series Helicopters |
Unsafe Condition
Possible cracks in the tail boom stabilizer spar attachment structure and stabilizer spar tube due to fatigue.
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Required Actions
Install modification AMS 365A.07.131 according to Aerospatiale Service Bulletin No. 53.01 for specified helicopters. Inspect stabilizer spar tubes for cracks at weld beads and spacer junctions using dye penetrant or equivalent method within 10 hours' time in service and repeat every 50 hours. Discard cracked tubes and install serviceable ones before further flight.
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Compliance Time
Within 200 hours' time in service after the effective date for modification installation (SA360C S/N up to 1034 and SA365C S/N 5003). Within 10 hours' time in service after effective date for initial inspection and repeat every 50 hours' time in service.
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Affected Aircraft
Societe Nationale Industrielle Aerospatiale (SNIAS) Models SA360C (serial numbers up to 1034) and SA365C (serial number 5003), and all SA360C and SA365C series helicopters equipped with spar tubes part number 360A13.0012.01.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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