AD 79-04-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | A109A | Airworthiness Directives; Costruzioni Aeronautiche Giovanni Agusta Model A109A Helicopters |
Unsafe Condition
Failure of the tailboom attachment provisions
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Required Actions
Remove and discard nuts MS 21042-L6, bolts NAS 626-20, and washers MS 20002-C6 and AN 960-616. Install new nuts 42-FLW-624, bolts NAS 626-20, washers MS 20002-C6, and as needed washers AN 960-616 and AN 960-616L. Torque bolts, inspect for torque, retorque if necessary, and re-inspect torque in accordance with Agusta Bollettino Tecnico No. 109-8 or FAA-approved equivalent.
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Compliance Time
within the next 50 hours time in service after the effective date of this AD
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Affected Aircraft
Costruzioni Aeronautiche Giovanni Agusta Model A109A helicopters, serial numbers 7135 and below
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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