ASN Wikibase Occurrence # 214104
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| Date: | Saturday 4 August 2018 |
| Time: | 15:30 |
| Type: |  Rans S-7S Courier |
| Owner/operator: | Private |
| Registration: | N8443B |
| MSN: | 0405398 |
| Year of manufacture: | 2006 |
| Total airframe hrs: | 382 hours |
| Engine model: | Rotax 912S |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Tyonek, AK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Kenai, AK |
| Kenai, AK | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot in the tailwheel-equipped airplane reported that, during the takeoff roll about 40 knots airspeed with full flaps and about 50% of the 900-ft-long runway remaining, the airplane lifted off and began to climb. The airplane climbed above the tree line but then descended into ground effect. The pilot attempted to clear the trees ahead, but the airplane stalled. The left wing dropped, and the airplane descended below the tree line and touched down on the main landing gear, collided with trees, and then came to rest inverted.
The airplane sustained substantial damage to the left wing lift struts.
The pilot reported that he could have used the additional runway surface and held the airplane on the ground to achieve a more desirable airspeed. Additionally, the Pilot’s Operating Handbook stated not to use full flap application during short-field takeoffs.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Probable Cause: The pilot's exceedance of the airplane's climb capability due to his use of full flaps during a short-field takeoff, his failure to attain a positive climb rate after takeoff, and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=8443B
Location
Images:
Photo: FAA
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Aug-2018 06:43 | gerard57 | Added |
| 06-Aug-2018 10:20 | Aerossurance | Updated [Aircraft type, Location, Source, Narrative] |
| 06-Aug-2018 19:06 | Geno | Updated [Aircraft type, Registration, Cn, Source, Damage, Narrative] |
| 15-Jun-2019 16:18 | ASN Update Bot | Updated [Time, Departure airport, Destination airport, Source, Damage, Narrative, Accident report, ] |
| 15-Jun-2019 16:38 | harro | Updated [Departure airport, Destination airport, Source, Narrative, Photo] |
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