NONE · Bell 47G-4A · 1998-08-23 · CARROLLTON, AL, USA
Event
NTSB number
MIA98FA229
Event ID
20001211X10912
Type
Accident
Date
1998-08-23
Location
CARROLLTON, AL, USA
Coordinates
33.259483, -88.089294
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
1
Total aboard
1
Aircraft
Make
Bell
Model
47G-4A
Registration
N7162M
FAR Part
137
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The pilots failure to follow written instructions in the flight manual for an engine failure, and the improper use of flight controls (cyclic/collective) during an autorotation resulting in a hard landing, and collision of the main rotor blades with the tailboom assembly. Contributing to the accident was the improper installation of circlips on the counterweight assembly during an engine overhaul. This resulted in a subsequent total failure of the number 5 connecting rod.