Description
Replacement early twist-type fuel cap, part FC-3992-1, for applicable Grumman AA-series aircraft.
Existing catalog effectivity covers applicable 1969–1978 models. This is not the later flush-mount cap design.
Confirm aircraft model, serial number, filler-neck configuration, cap dimensions, venting, and gasket requirements before ordering.





When this pilot forgets to properly close the fuel cap on my wing. This is insurance against such a mistake.