ASN Wikibase Occurrence # 121331
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| Date: | Saturday 26 March 2011 |
| Time: | 16:29 |
| Type: |  Yakovlev Yak-52TD |
| Owner/operator: | Walker Brothers Aircraft |
| Registration: | N808TD |
| MSN: | 833808 |
| Total airframe hrs: | 1188 hours |
| Engine model: | Vedeneyev M14P |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Palm Coast, Florida -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Demo/Airshow/Display |
| Departure airport: | Palm Coast, FL (XFL) |
| Palm Coast, FL (XFL) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the third and final aerobatic flight that day, after completing a loop maneuver called the “heart” maneuver, the pilot failed to recover from the nose-low descent before ground impact. A video recording of the last segment of the flight revealed no parts separated from the airplane.
The airplane was substantially damaged by impact forces and a postcrash fire that nearly consumed the fuselage and portions of both wings; however, there was no evidence of a preimpact failure or malfunction of the flight controls for roll, pitch, or yaw. The right flap was noted to be extended, which agreed with the as-found position of the single flap actuator. Although no brain tissue, blood, or cardiac tissue were available for examination at autopsy, analysis of the limited evidence available found nothing to support a medical cause for impairment or incapacitation.
Video evidence suggests that the airplane’s flightpath angle became shallower during the last 1.3 seconds of the recording, which was very near the time of impact, when compared with the earlier portion of the descent. Cursory examination of the engine and damage to the propeller blades suggest the engine was developing power at the moment of impact.
Probable Cause: The pilot’s failure to recover from the nose-low descent during an aerobatic maneuver.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2011 22:21 | bizjets101 | Added |
| 27-Mar-2011 08:15 | TB | Updated [Aircraft type, Operator, Source] |
| 27-Mar-2011 15:59 | TB | Updated [Aircraft type, Operator, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 16:44 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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