ASN Wikibase Occurrence # 291398
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| Date: | Wednesday 11 May 2016 |
| Time: | 17:10 LT |
| Type: |  Boeing-Stearman B75N1 |
| Owner/operator: | |
| Registration: | N56200 |
| MSN: | 757813 |
| Year of manufacture: | 1943 |
| Total airframe hrs: | 454 hours |
| Engine model: | Lycoming R-680-E3B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Winslow, Arizona -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Winslow Airport, AZ (INW/KINW) |
| Phoenix, AZ | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot reported that, earlier in the day, she had flown three flights, totaling about 5 hours of flight time, which included uneventful takeoffs from two airports with a higher density altitude than that which existed at the accident airport; the calculated density altitude at the time of the accident was about 7,223 ft.
The pilot reported that, before takeoff for the accident flight, she conducted an engine run-up and pretakeoff checks, which included leaning the mixture to account for the density altitude. She also conducted a static-power check, which was in the normal range. The pilot reported that, during takeoff for the personal cross-country flight, the airplane accelerated and climbed out normally with the tachometer indicating 2,250 rpm. As the airplane climbed to about 50 ft above ground level, the engine began to lose power, and the airplane started to descend. The pilot turned the airplane left to maintain clearance from obstacles and verified the throttle, mixture, propeller, fuel, and carburetor heat settings. Subsequently, the airplane struck the ground and rolled about 20 ft, the right main landing gear impacted vegetation, and the airplane cart-wheeled. The pilot reported that, just before landing, she observed the tachometer indicating 2,000 rpm.
It is likely that the engine's partial loss of power, in combination with the high-density altitude, prevented the airplane from being able to maintain a positive climb rate during takeoff. Postaccident examination of the airplane and engine run did not reveal any evidence of any preexisting anomalies that would have precluded normal operation; therefore, the reason for the partial loss of engine power could not be determined.
Probable Cause: The partial loss of engine power during takeoff initial climb in high-density altitude conditions for reasons that could not be determined because a postaccident examination of the airplane and engine revealed no anomalies.
Accident investigation:
 |
|
Sources:
NTSB WPR16LA106
History of this aircraft
Other occurrences involving this aircraft
| 17 August 2015 | N56200 | 3G Classic Aviation Inc | 0 | Goodwood Aerodrome, Chichester, West Sussex |  |
min |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Oct-2022 13:25 | ASN Update Bot | Added |
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