2 fatal · BEECH C90 · 2021-07-10 · Wikieup, AZ, USA
Event
NTSB number
WPR21FA266
Event ID
20210711103452
Type
Accident
Date
2021-07-10
Location
Wikieup, AZ, USA
Coordinates
34.824722, -113.39138
Injuries
Highest injury
FATL
Fatal
2
Serious
0
Minor
0
Uninjured
0
Total aboard
2
Aircraft
Make
BEECH
Model
C90
Registration
N3688P
FAR Part
PUBU
Engines
2
Damage
DEST
Conditions
Light
DAYL
Weather
VMC
Probable cause
The failure and separation of the left wing’s outboard section due to a fatigue crack in the lower spar cap. Contributing to the accident was the operator’s decision to repair the wing spar instead of replacing it as recommended by the aircraft manufacturer. Also contributing to the accident was the failure of the Non-Destructive Testing inspector to detect the fatigue crack during inspection.