Models M20F, M20J and M20L airplanes (Docket No. 96-CE-51-AD; Amdt. 39-10251; AD 97-26-08) - requires removing the fuel cap retaining lanyard from the fuel filler cap assemblies. A report of lost engine power during flight because of fuel starvation prompted the action. The investigation revealed that the airplane fuel float became trapped by the fuel cap retaining lanyard, keeping the float from following the fuel level. This condition caused the pilot to get a false fuel quantity ...


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