# NTSB Accident LAX07TA277
> **Air Tractor AT-802A** · 2007-09-17 · Big Bear City, CA, USA · NONE
## Event
- **NTSB number:** LAX07TA277
- **Event ID:** 20070927X01462
- **Type:** Accident
- **Date:** 2007-09-17
- **Location:** Big Bear City, CA, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Air Tractor
- **Model:** AT-802A
- **Registration:** N91357
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## 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 the accident was the operator's failure to follow the engine maintenance manual procedures for oil monitoring following generator replacement and the unsuitable terrain for the forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX07TA277) · AI Analytics · CC0 1.0*