AD 75-27-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | SA 3180-Alouette Astazou | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SA 318C-Alouette Astazou | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SA.315B Alouette III | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SA.316B Alouette III | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SA.316C Alouette III | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SA.319B Alouette III | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SE 3130-Alouette II | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SE 313B-Alouette II | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
| aircraft | Airbus Helicopters | SE.3160 Alouette III | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C Helicopter |
Unsafe Condition
Failure of the main rotor blades due to corrosion in the blade spar section between the attachment fitting and root end rib.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the blade spar between the attachment fitting and root end rib for corrosion, repair as necessary, and return to service following SGAC-approved Alouette Service Bulletin No. 01.30 or an equivalent approved by the FAA.
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Compliance Time
within the next 100 hours' time in service after the effective date of this AD
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Affected Aircraft
Societe Nationale Industrielle Aerospatiale Models SE-3130, SE-313B, SA-3180, SA-318C, SA-315B, SE-3160, SA-316B, SA-319B, and SA-316C with 3130 series main rotor blades (serial number 9554 and lower) or 3160 series main rotor blades (serial number 6999 and lower).
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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