ASN Wikibase Occurrence # 367100
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| Date: | Sunday 22 April 1990 |
| Time: | 19:30 LT |
| Type: |  Balloon Works 7B |
| Owner/operator: | Private |
| Registration: | N1512T |
| MSN: | F7B-033 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lexington, KY -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
N1512T BECAME TRAPPED IN A DUST DEVIL AT CRUISE FLIGHT WHILE PARTICIPATING IN A BALLOON RALLY IN LEXINGTON, KENTUCKY. THE BALLOON STARTED A 900 FPM TWISTING CLIMB UNTIL IT REACHED 4000 FEET. AT THE TOP OF THE DUST DEVIL, THE BALLOON STARTED A RAPID DESCENT, WHICH THE PILOT COULD NOT CONTROL. THE BURNER ASSEMBLY WAS DAMAGED DURING THE CLIMB AND WOULD ONLY PRODUCE PARTIAL POWER. THE PILOT'S ATTEMPT TO CONTROL THE RATE OF DESCENT FAILED. ABOUT 50 FEET ABOVE THE GROUND, THE PILOT CLOSED OFF THE BURNER PILOT. THE BALLOON CRASH LANDED BETWEEN TWO HOMES. EXAMINATION DISCLOSED SEVERAL TORN PANELS, BROKEN JUMPER CORDS, A BROKEN CENTER CORD, AND SEVERAL FRAYED CENTER CORDS. SUBSEQUENT TENSILE TESTS PROVED THAT THE CORDS WERE WITHIN SPECIFICATION AND THEY FAILED IN OVERLOAD. DUST DEVIL ACTIVITY NORMALLY CAN NOT BE FORECASTED.
Probable Cause: THE OVERLOAD FAILURE OF SEVERAL JUMPER CORDS. FACTOR(S) WERE INADVERTENT ENCOUNTER WITH UNFAVORABLE WIND (DUST DEVIL). SUBSEQUENTLY, THE PILOT WAS UNABLE TO CONTROL THE RATE OF DESCENT.
Accident investigation:
 |
|
Sources:
NTSB ATL90LA104
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 07:29 | ASN Update Bot | Added |
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