SERS · Hughes OH-6A · 2004-10-25 · Tucson, AZ, USA
Event
NTSB number
LAX05TA018
Event ID
20041116X01830
Type
Accident
Date
2004-10-25
Location
Tucson, AZ, USA
Coordinates
32.006389, -111.654167
Injuries
Highest injury
SERS
Fatal
0
Serious
2
Minor
0
Uninjured
0
Total aboard
2
Aircraft
Make
Hughes
Model
OH-6A
Registration
N6188L
FAR Part
PUBU
Engines
1
Damage
DEST
Conditions
Light
DAYL
Weather
VMC
Probable cause
The loss of engine power due to a fatigue fracture of the PC line from the governor to fuel control, resulting from fretting damage induced by excessive vibration, which was due to the failure of maintenance personnel to install the proper bearings in the starter/generator. A contributing factor was the loss of power at low altitude and airspeed (height/velocity limitation) which diminished the possibility of a successful autorotation.