ASN Wikibase Occurrence # 151429
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| Date: | Monday 24 December 2012 |
| Time: | 10:15 |
| Type: | Swift II |
| Owner/operator: | Private |
| Registration: | N84NS |
| MSN: | 01 |
| Engine model: | Lycoming IO-360-A3B6D |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Twin Oaks Airport -T34, off Heimer Road in San Antonio, TX -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | San Antonio, TX (T94) |
| San Antonio, TX (T94) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The airplane was climbing through about 50 to 75 feet above ground level when it suddenly rolled left. The pilot tried to counteract the roll, but the airplane was unresponsive to control inputs. The sudden roll followed by a lack of control authority was consistent with an aerodynamic stall as the airplane transitioned from the aerodynamic effects of flight near the ground. A stall progression near the ailerons would have affected control authority. A postaccident examination of the flight control system revealed no malfunctions or failures that would have precluded normal operation. It is likely that the pilot climbed too steeply after takeoff without attaining the proper airspeed.
Probable Cause: The pilot's failure to attain a proper pitch attitude and airspeed during initial climb, which resulted in an aerodynamic stall.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Dec-2012 06:34 | gerard57 | Added |
| 25-Dec-2012 13:04 | Alpine Flight | Updated [Aircraft type, Cn] |
| 26-Dec-2012 11:19 | Geno | Updated [Time, Aircraft type, Location, Phase, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 28-Nov-2017 14:00 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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