HEISER ROBERT C JR PULSAR XP near San Angelo, TX — 2012-04-17
- Date
- 2012-04-17
- Location
- San Angelo, TX, USA
- Airport
- TS65
- Aircraft
- HEISER ROBERT C JR PULSAR XP
- Registration
- N912RV
- Category
- Airplane
- Highest injury
- Minor
- Fatalities
- 0
- Phase of flight
- Takeoff roll
Probable cause
The loss of engine power due to fuel starvation as a result of a blocked fuel vent line.
NTSB narrative
The sport pilot reported that the airplane had not been flown in 4 months. Six gallons of fuel were in the right tank, and three gallons were in the left tank; right wing tank was selected during the accident flight. The engine start, taxi, and run-up were normal. About 4 minutes after engine start, the pilot taxied onto the runway and departed. He reported that the airplane climbed to about 50 feet above ground level when the engine had a total loss of engine power. The airplane landed in a field and sustained substantial damage. During postaccident examination, the fuel tanks, fuel lines, and fuel strainer were checked for debris and water contamination, but none were observed. The engine-driven mechanical fuel pump, the electric fuel pump, and the engine all were tested and operated normally. However, the outboard section of right wing fuel vent line was blocked by debris. The blockage was removed from the fuel vent line; it measured about ¼-inch wide at its widest and about ½-inch long. The blocked fuel vent line likely created a vacuum, which resulted in fuel starvation to the engine.
Analysis
- Primary failure mode
- Fuel management
- First missed decision gate
- Pilot could have checked fuel vent blockage before takeoff.
NTSB coding
Evidence available
- Photos
- 12 docket documents
Docket documents12
- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form
- Release of Aircraft Wreckage, NTSB Form 6120.15form
- Pilot Emails Concerning Loss of Powerother
- Pilot's Analysis of Loss of Powerother
- ROTAX Maintenance Articleother
- Test of Facet 12V Fuel Pump and Vent Lineother
- Photo 1. Airplane in fieldphotos
- Photo 2. Airplane in field from rearphotos
- Photo 3. Fuel vent line with obstructionphotos
- Photo 4. Facet 12V fuel pumpphotos
- Photo 5. Disassembled fuel pumpphotos
- Photo 6. Enginephotos
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