AD 91-08-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | A109A | Airworthiness Directives; CONSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA Model A109A and A109AII Helicopters |
| aircraft | Agusta S.p.A. | A109A II | Airworthiness Directives; CONSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA Model A109A and A109AII Helicopters |
Unsafe Condition
Fatigue failure of the main rotor blade and subsequent loss of the helicopter.
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Required Actions
Inspect each main rotor blade for cracks using dye penetrant or equivalent method, followed by eddy current inspections at intervals not exceeding 25 hours time in service. Replace blades if cracks are found.
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Compliance Time
Required prior to further flight for blades with 300 or more hours total time in service on the effective date, and thereafter upon attaining 300 hours time in service.
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Affected Aircraft
Agusta S.p.A. Model A109A and A109AII helicopters with main rotor blades part number 109-0103-01 (all dash numbers), serial numbers 378 through and including 1519.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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