1 fatal · KLAAS DEVELOPMENT INC LANCAIR IV P · 2014-09-03 · Ooltewah, TN, USA
Event
NTSB number
ERA14FA421
Event ID
20140903X63615
Type
Accident
Date
2014-09-03
Location
Ooltewah, TN, USA
Coordinates
35.077777, -85.055274
Injuries
Highest injury
FATL
Fatal
1
Serious
0
Minor
0
Uninjured
0
Total aboard
1
Aircraft
Make
KLAAS DEVELOPMENT INC
Model
LANCAIR IV P
Registration
N541EM
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The inadequate torque of the propeller mounting bolts and inspection of the propeller, which resulted in the fatigue fracture of the bolts and a subsequent in-flight separation of the propeller assembly.