AD 2001-25-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Eurocopter | France Model AS 332C, L, L1, and L2 | Airworthiness Directives; Eurocopter France Model AS 332C, L, L1, and L2 Helicopters |
Unsafe Condition
Jammed fuel filter bypass valves can lead to power loss due to fuel starvation, engine flameouts, and a subsequent forced landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours time-in-service (TIS), verify the correct closure of the fuel filter bypass valve for each engine fuel filter, conduct a filter pre-clogging warning test, and if a blocked fuel filter element is detected, clean the filter assembly and repeat the test. Insert a copy of this AD into the Rotorcraft Flight Manual or make a pen and ink addition to the RFM Emergency Procedure. If both filter clogged caution lights illuminate in flight, after landing, either accomplish the requirements of paragraphs (a)(1) through (a)(4) before further flight or replace both fuel filter elements with airworthy ones and conduct a one-time direct flight to a location where the requirements can be accomplished before further flight.
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Compliance Time
Within 25 hours time-in-service (TIS) after any subsequent flight during which either fuel filter pre-clogging caution light illuminates, and after each installation of a new fuel filter assembly or filter element.
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Affected Aircraft
Eurocopter France Model AS 332C, L, L1, and L2 helicopters with any of the specified part-numbered fuel filters 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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