NTSB Identification: FTW96LA392.
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Accident occurred Thursday, September 19, 1996 in BOULDER, CO
Probable Cause Approval Date: 03/31/1998
Aircraft: Beech H35, registration: N5428D
Injuries: 2 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
At an altitude of 200 feet above ground level, following a touch and go landing, a total loss of power occurred and a forced landing was conducted on rough and uneven terrain. Examination of the aircraft provided evidence that the left fuel tank, which had been selected, had a totally blocked fuel vent due to a mud based insect nest. The nest was internal in the vent and could not be seen during normal inspection. The aircraft had not been flown in 20 days prior to the accident flight.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: a loss of engine power due to a plugged fuel tank vent which resulted in fuel starvation. A factor was the lack of suitable terrain for the forced landing. Full narrative available
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