# Accident 20070917823909A: Airtrc AT802A, Big Bear, CA, September 17, 2007

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 17, 2007, 13:10 local time
- Place: Big Bear, CA
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 34.2431° N, 116.8856° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=34.2431&lon=-116.8856&mi=10
- Aircraft: N91357, registered now (https://openairdocs.org/aircraft/N91357) (OpenAirDocs)
- Registry model: Air Tractor AT-802A (registry code 0390308, https://openairdocs.org/model/air-tractor-at-802a) (OpenAirDocs)
- Registry engine: Pratt & Whitney PT6A series (registry code 52034, https://openairdocs.org/engine/pratt-whitney-pt6a-series) (OpenAirDocs)
- Reported make and model: AIRTRC AT802A
- Reported engine: PWA PT6*
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 15,000 total, 300 in this make and model, 200 in the last 90 days
- NTSB investigation: [NTSB LAX07TA277](https://openairdocs.org/ntsb/LAX07TA277) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20070917823909A

## Narrative

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

(-23) N91357, AT802A, OPERATED BY THE US FOREST SERVICE, CRASHED IN FIELD WEST OF AIRPORT DUE TO ENGINE LOSS AT 171310PDT JUST AFTER DEPARTING BIG BEAR, CA, AIRPORT, ON A FIRE FIGHTING MISSION. SUBSTANTIAL AIRCRAFT DAMAGE. THE SOLE OCCUPANT WAS NOT INJURED.

## 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 LAX07TA277](https://openairdocs.org/ntsb/LAX07TA277), Sep 17, 2007: Air Tractor AT-802A (N91357), Big Bear City, CA, substantial damage. Probable cause: Loss of engine power while maneuvering due to the failure of the number 1 bearing that was caused by electrical discharge damage to the bearing originating from the starter-generator. Contributing to…

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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