CircumFlightN2284U Brantly Helicopter B-2B accident
NTSB MIA90LA150 · 1990-07-10 · CHRISTIANSTED
Docket — crew, injuries and powerplant
Factual narrative
HELICOPTER WAS AT NEAR GROSS WEIGHT AND PILOT ESTIMATED TEMPERATURE AT HELIPAD TO BE 90 DEGREES FAHRENHEIT. AS HELICOPTER LIFTED OFF HE PERFORMED LEFT PEDAL TURN WHICH REQUIRES ADDITIONAL ENGINE POWER. HELICOPTER DESENDED DOWN HILL AWAY FROM HELIPAD AND ALTITUDE COULD NOT BE MAINTAINED WITH FULL ENGINE POWER. LEFT SKID CONTACTED TREE STUMP AND HELICOPTER ROLLED OVER.
Probable cause
THE FAILURE OF THE PILOT TO EVALUATE WEIGHT, TEMPERATURE, AND POWER AVAILABLE PRIOR TO TAKEOFF AND THEN PERFORMING A LEFT PEDAL TURN AFTER TAKEOFF RESULTING IN THE HELICOPTER DESENDING EVEN THOUGH FULL POWER WAS APPLIED. The National Transportation Safety Board determined the probable cause of this accident.
Circumstances
- Event type
- Accident
- Highest injury
- None
- Weather conditions
- Visual Meteorological Cond
- Light condition
- Day
- Sky condition
- NONE
- Ceiling (ft)
- 0
- Visibility (sm)
- 15
- Wind direction
- 160
- Wind speed (kt)
- 12
- Temperature (F)
- 82
- Distance from field
- 0.0
Aircraft
| Registration | Make | Model | Damage | FAR part |
|---|---|---|---|---|
| N2284U | Brantly Helicopter | B-2B | SUBS | 091 |
Sequence of events
| # | Occurrence | Phase |
|---|---|---|
| 1 | 250 | Cruise |
| 2 | 230 | Cruise |
| 3 | 380 | Descent |
Findings
| Finding | |
|---|---|
| 17310 | cause |
| 23203 | cause |