HOUSTON, TX, USA
N6208L
AMERICAN AA1B
SHORTLY AFTER LIFTOFF, THE ENGINE LOST POWER AND THE PILOT TURNED TOWARD A FIELD. THE NOSE WHEEL STRUCK A LEVEE AND THE AIRPLANE FLIPPED INVERTED. DURING A POST-CRASH INSPECTION, A LARGE MUD DAUBER NEST WAS FOUND INSIDE THE AIR INDUCTION SYSTEM, JUST BEHIND THE CARBURETOR HEAT CONTROL VALVE. THE AIRPLANE WAS NOT EQUIPPED WITH VENTED FUEL CAPS, AND THE FUEL TANK VENT LINES IN BOTH WINGS WERE OBSTRUCTED WITH A FOREIGN MATERIAL. THERE WERE NUMEROUS OTHER SMALL MUD-DAUBER NESTS INSIDE THE COWLING.
Source: NTSB Aviation Accident Database
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