NONE · BOEING CH-46E · 2023-08-05 · Springerville, AZ, USA
Event
NTSB number
WPR23LA306
Event ID
20230807192818
Type
Accident
Date
2023-08-05
Location
Springerville, AZ, USA
Coordinates
33.730624, -109.41119
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
3
Total aboard
3
Aircraft
Make
BOEING
Model
CH-46E
Registration
N461WY
FAR Part
091
Engines
2
Damage
DEST
Conditions
Light
DAYL
Weather
VMC
Probable cause
The flight crew’s misidentification of a No. 2 torque sensing system signal conditioner malfunction when both engines were performing normally, which resulted in their attempt to execute a single-engine steep approach and landing without sufficient engine power. Contributing to the accident was the failure of the torque sensing system signal conditioner.