SCYRENE, AL, USA
N22553
CESSNA 150H
THE ENGINE LOST PWR DURING A LOW-ALTITUDE POWERLINE PATROL. THE AIRPLANE NOSED OVER DURING THE SUBSEQUENT FORCED LDG. POST-CRASH EXAMINATION OF THE ACFT BY AN FAA INSPECTOR REVEALED THAT THE FUEL TANK VENT SYSTEM WAS OBSTRUCTED WITH MUD-DAUBER NESTS IN SEVERAL PLACES. THE CROSSOVER VENT TUBE, LOCATED IN THE TOP OF THE CABIN, WAS FOUND COMPLETELY BLOCKED. THE LEFT WING VENT TUBE WAS FOUND PARTIALLY BLOCKED. NO EVIDENCE OF MECHANICAL MALFUNCTION OR FAILURE WAS FOUND DURING EXAMINATION OF THE ENGINE. THE ACFT HAD BEEN INVOLVED IN ANOTHER ACCIDENT APPROX 4 MONTHS EARLIER, AND THE WINGS WERE REPORTEDLY REMOVED FROM THE ACFT DURING REPAIRS.
Source: NTSB Aviation Accident Database
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