MINR · Grumman-Schweizer G-164B · 2002-07-04 · Shelley, ID, USA
Event
NTSB number
SEA02LA121
Event ID
20020715X01126
Type
Accident
Date
2002-07-04
Location
Shelley, ID, USA
Coordinates
43.45, -112.166664
Injuries
Highest injury
MINR
Fatal
0
Serious
0
Minor
1
Uninjured
0
Total aboard
1
Aircraft
Make
Grumman-Schweizer
Model
G-164B
Registration
N297AL
FAR Part
137
Engines
1
Damage
DEST
Conditions
Light
DAYL
Weather
VMC
Probable cause
A loss of engine power due to the manufacturer's improperly machined threads, which prevented the cylinder base/head halves from being properly assembled, leading to fatigue propagation and the ultimate separation of the cylinder. A contributing factor was the rough terrain.