AD 81-13-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta S.p.A. | A109A | Airworthiness Directives; COSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA: Model A109A Series Helicopters |
| aircraft | Agusta S.p.A. | A109A II | Airworthiness Directives; COSTRUZIONI AERONAUTICHE GIOVANNI AGUSTA: Model A109A Series Helicopters |
Unsafe Condition
Corrosion in the main rotor blade leading edge abrasion strip inner end and scarf joint could result in in-flight rotor blade failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect main rotor blades for filler erosion, release, and corrosion within 25 hours time in service after the AD's effective date. Depending on findings, apply polyurethane tape, repair with urethane adhesive, or replace blades. Daily post-flight checks of polyurethane tapes are required thereafter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 25 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Agusta S.p.A. Model A109A and A109A II helicopters with main rotor blades P/N 1090-0103-01-07 installed.
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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