AD 75-17-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | SA341G | Airworthiness Directives; Societe Nationale Industrielle Aerospatiale Model SA-341G "Gazelle" Helicopters |
Unsafe Condition
Excessive elongation of main rotor blade torsion strip stacks in service could lead to loss of helicopter control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install three 'tell-tale' devices on the main rotor hub per SA-341 Service Bulletin No. 65.10 or equivalent. Visually check the 'tell-tale' device's frangible screw before first flight daily; if broken, rectify installation and replace associated torsion strip stack as per the same service bulletin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours' time in service
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Affected Aircraft
Societe Nationale Industrielle Aerospatiale Model SA-341G 'Gazelle' helicopters, serial numbers 1299 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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