NONE · PAUL R SEIPT SONEX · 2017-06-03 · Garfield, WA, USA
Event
NTSB number
WPR17LA119
Event ID
20170604X50503
Type
Accident
Date
2017-06-03
Location
Garfield, WA, USA
Coordinates
46.99139, -117.12722
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
1
Total aboard
1
Aircraft
Make
PAUL R SEIPT
Model
SONEX
Registration
N255BZ
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The pilot’s improper torque of screws that attached the flywheel mounting flange to the crankshaft during engine assembly, which resulted in heavy vibrations and the subsequent in-flight loss of the propeller.