Narrative:
Lost control at FL412 after encountering clear air turbulence and crashed in a steep high speed descent.
PROBABLE CAUSE(S):
miscellaneous - undetermined
FACTOR(S):
miscellaneous acts,conditions - separation in flight
Loss of control
| Status: | Accident investigation report completed and information captured |
| Date: | Friday 11 April 1980 |
| Time: | 17:19 |
| Type: |  Learjet 25B |
| Operator: | Thunderbird Airways |
| Registration: | N25TA |
| MSN: | 25-196 |
| First flight: | 1975 |
| Crew: | Fatalities: 2 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Damaged beyond repair |
| Location: | 10 km (6.3 mls) W of Conlon, TX ( United States of America)
|
| Phase: | En route (ENR) |
| Nature: | Ferry/positioning |
| Departure airport: | Vernal Airport, UT (VEL/KVEL), United States of America |
| Houston (unknown airport), TX, United States of America |
Lost control at FL412 after encountering clear air turbulence and crashed in a steep high speed descent.
Probable Cause:
PROBABLE CAUSE(S):
miscellaneous - undetermined
FACTOR(S):
miscellaneous acts,conditions - separation in flight
Classification:
Cause undetermined Loss of control
Photos
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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