# Accident 19900807031119A: Thundr AX9140S2, Napa, CA, August 7, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 7, 1990, 07:45 local time
- Place: Napa, CA
- Damage: Substantial damage
- Phase of flight: Level Off Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 38.5507° N, 122.1507° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.5507&lon=-122.1507&mi=10
- Aircraft: N9112R, a cancelled registration (https://openairdocs.org/deregistered/N9112R-2013-06-07) (OpenAirDocs)
- Registry model: Thunder Balloons AX9-140 SII (registry code 8970116, https://openairdocs.org/model/thunder-balloons-ax9-140-sii) (OpenAirDocs)
- Registry engine: NONE (registry code 00000, https://openairdocs.org/engine/none) (OpenAirDocs)
- Reported make and model: THUNDR AX9140S2
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 4,030 total, 60 in this make and model, 63 in the last 90 days
- NTSB investigation: [NTSB LAX90LA277](https://openairdocs.org/ntsb/LAX90LA277) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900807031119A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

SEVERE WIND GUST AND DOWN DRAFT FORCED BALLOON DOWN TO HARD LANDING. WAD 30 MILES FROM FORECAST THUNDERSTORM.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX90LA277](https://openairdocs.org/ntsb/LAX90LA277), Aug 7, 1990: Thunder and Colt AX9-140 SLI (N9112R), Napa, CA, substantial damage. Probable cause: FLIGHT'S ENCOUNTER WITH A PROBABLE MICROBURST WEATHER PHENOMENA WITH DOWN DRAFTS AND WINDS BEYOND THE PERFORMANCE CAPABILITY OF THE BALLOON.

## Other reports on N9112R (1)

Matched to the same aircraft by N-number and date.

- [Accident 19900502018459A](https://openairdocs.org/incident/19900502018459A), May 2, 1990: Thundr AX9140S2 (N9112R), Napa, CA. Wind increased during flight. Landed hard bounced ballooned and hit hard again. 12 mph surface wind.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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