MINR · Bede Corp BD-4 · 2023-11-14 · Lowell, IN, USA
Event
NTSB number
CEN24LA038
Event ID
20231120193402
Type
Accident
Date
2023-11-14
Location
Lowell, IN, USA
Coordinates
41.17, -87.25
Injuries
Highest injury
MINR
Fatal
0
Serious
0
Minor
1
Uninjured
0
Total aboard
1
Aircraft
Make
Bede Corp
Model
BD-4
Registration
N931AS
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
Fatigue cracking of the propeller blade root, which resulted in the in-flight separation of the propeller blade from its root. Contributing to the accident was the improper machining of the blade root threads, which resulted in chatter/ratchet marks that weakened the strength of the blade root.