AD Amdt-39-11483
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Cessna | Aircraft Company 170 | Airworthiness Directives; Cessna Aircraft Company 170, 172, 175, and 177 Series Airplanes |
Unsafe Condition
Fuel selector valve cams and fuel selector valves manufactured with control shafts that will not allow both tanks to supply fuel to the engine in certain situations, specifically when the pilot selects the 'Both On' position.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace certain fuel selector valve cams or fuel selector valves that Cessna shipped from December 6, 1998, through May 10, 1999. Prevent future installation of these fuel selector valve cams and fuel selector valves.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 hours time-in-service (TIS) after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Cessna Aircraft Company 170, 172, 175, and 177 series airplanes equipped with Fuel Selector Valve Cam part number 0513123, or Fuel Selector Valve part numbers 0513120-5, 0513120-6, 0513120-8, 0513120-9, or 0513120-200, shipped from December 6, 1998, through May 10, 1999, and within the specified serial number ranges.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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