CircumFlightN53125 Stearman A-75-N1 accident
NTSB SEA88LA087 · 1988-05-01 · MEDFORD, OR
Docket — crew, injuries and powerplant
Factual narrative
PLT PERFORMED A NEGATIVE 'G' MANEUVER, ESTIMATED AT 2 TO 2.5 NEGATIVE 'G' FORCE, FOLLOWING WHICH THE ENGINE LOST POWER. A FORCED LANDING WAS ACCOMPLISHED IN SCRUB TREES. THE ENGINE IS EQUIPPED WITH A FLOAT CARBURETOR. THERE WERE INDICATIONS THAT THE CAUSE OF POWER LOSS WAS NEGATIVE 'G' DISPLACEMENT OF ONE OR BOTH FLOATS IN THE CARBURETOR BOWL (STUCK FLOAT), RESULTING IN FUEL STARVATION.
Circumstances
- Event type
- Accident
- Highest injury
- Minor
- Weather conditions
- Visual Meteorological Cond
- Light condition
- Day
- Sky condition
- BKN
- Ceiling (ft)
- 25000
- Visibility (sm)
- 30
- Wind direction
- 280
- Wind speed (kt)
- 4
- Temperature (F)
- 55
- Distance from field
- 0.0
- Airport elevation
- 0
Aircraft
| Registration | Make | Model | Damage | FAR part |
|---|---|---|---|---|
| N53125 | STEARMAN | A-75-N1 | SUBS | 091 |
Sequence of events
| # | Occurrence | Phase |
|---|---|---|
| 1 | 354 | Cruise |
| 2 | 180 | Cruise |
| 3 | 230 | Cruise |
Findings
| Finding | |
|---|---|
| 15126 | cause |
| 17001 | cause |
| 24501 | cause |
| 24543 | cause |
| 19200 | factor |
| 20200 |