AD 2015-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. | Airworthiness Directives; Agusta S.p.A. Helicopters |
Unsafe Condition
Failure of a hydraulic external hoist pressure line pump due to metal particles generated by unusual wear of an internal subcomponent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the hydraulic external hoist pressure line filter for metal particles within 10 hours time-in-service (TIS) and thereafter at intervals not to exceed 25 hours TIS. If metal particles are found, flush the utility hydraulic system, replace the filter with an airworthy one, and replace the pressure line pump with an airworthy pump before the next flight.
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Compliance Time
Within 10 hours time-in-service (TIS) and thereafter at intervals not to exceed 25 hours TIS.
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Affected Aircraft
Agusta S.p.A. Model AB412 helicopters with a hydraulic external hoist part number BL10300-60 installed, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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