ASN Wikibase Occurrence # 132898
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| Date: | Thursday 25 August 1994 |
| Time: | 20:15 LT |
| Type: | Teratorn Tierra II |
| Owner/operator: | Robert Idler |
| Registration: | N6161Q |
| MSN: | 1 |
| Total airframe hrs: | 97 hours |
| Engine model: | ROTAX 532 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Prole, IA -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Des Moines, IA (NONE) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING CRUISE FLIGHT, THE TWO-SEAT REGISTERED ULTRALIGHT AIRCRAFT ENCOUNTERED THE GUST FRONT FROM AN APPROACHING THUNDERSTORM WHICH WAS LOCATED 7 TO 15 MILES AWAY. THE ULTRALIGHT ENTERED AN UNCOMMANDED RIGHT DESCENDING BANK, WHICH THE PILOT COULD COULD NOT ARREST WITH FULL OPPOSITE AILERON INPUT. THE ULTRALIGHT IMPACTED TREES AND WAS DESTROYED.
Probable Cause: the airplane's encounter with the outflow (gust front) from an approaching thunderstorm. Factors were the pilot's inaccurate evaluation of the gust front location, and the inability of the airplanes flight control system to compensate for the rolling moment.
Accident investigation:
 |
|
Sources:
NTSB CHI94LA299
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 09-Apr-2024 19:37 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Source, Narrative, Plane category, Category, Accident report] |
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