NONE · Air Tractor AT-802A · 2007-09-17 · Big Bear City, CA, USA
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.