SERS · Aerospatiale AS350D · 2003-08-13 · Webb, ID, USA
Event
NTSB number
SEA03FA169
Event ID
20030903X01441
Type
Accident
Date
2003-08-13
Location
Webb, ID, USA
Coordinates
46.374168, -116.846664
Injuries
Highest injury
SERS
Fatal
0
Serious
1
Minor
0
Uninjured
0
Total aboard
1
Aircraft
Make
Aerospatiale
Model
AS350D
Registration
N57731
FAR Part
133
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
An over temperature condition within the gas generator turbine which led to first stage turbine blade fatigue as well as first stage blade track warping and consequent blade tip rub. The fatigue and blade tip rub ultimately led to blade separation and failure of the engine. Contributing factors were the out of calibration condition of the turbine outlet temperature gauge and the non-operational engine CHIP warning light system. An additional factor was insufficient rotor RPM while conducting an autorotation.