AD 80-19-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna Aircraft Company | 335 | Airworthiness Directives; Cessna Model 335 and 340A Airplanes |
| aircraft | Cessna Aircraft Company | 340A | Airworthiness Directives; Cessna Model 335 and 340A Airplanes |
Unsafe Condition
Flight in adverse weather conditions with no means to supply electrical power to the deicer systems.
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Required Actions
Install a temporary placard on the instrument panel, install black electrician's tape over the airplane Operational Limits placard, pull and secure propeller deice and heated windshield circuit breakers, perform a wiring inspection and change per Cessna ME80-31 within 25 hours time-in-service, and notify FAA of any incorrect wiring within seven days.
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Compliance Time
Prior to further flight for placard and circuit breaker actions; within 25 hours time-in-service for wiring inspection and change; within seven days for notification.
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Affected Aircraft
Cessna Model 335 (Serial Numbers 335-0001 thru 335-0054 and 335-0056) and Model 340A (Serial Numbers 340A0901 thru 340A0994 and 340A1002) airplanes certified in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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