AD 2004-11-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Agusta | S.p.A. Model A109E | Airworthiness Directives; Agusta S.p.A. Model A109E Helicopters |
Unsafe Condition
Overheating of the electrical resistor on the windshield wiper electrical system due to a system overload caused by partial incompatibility of new timed relays with the configuration of the windshield wiper electrical system.
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Required Actions
Disable the windshield wipers and install a placard stating they are inoperative. Modify the electrical system of the windshield wipers by installing a new resistor and condenser, and replace the timed relay as specified. Remove the placard after modifications are complete.
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Compliance Time
Within 5 hours time-in-service for disabling wipers; within 6 months for modifying the electrical system.
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Affected Aircraft
Agusta S.p.A. Model A109E helicopters, serial numbers 11502 through 11504, 11122 through 11130 (except 11123, 11127, and 11129), and 11151, 11501, and 11001 through 11133 (except 11122, 11124 through 11128, and 11130), with specific windshield wiper kits and timed relays installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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