MINR · BELL UH-1B · 1991-03-12 · VERO BEACH, FL, USA
Event
NTSB number
MIA91LA113
Event ID
20001212X16669
Type
Accident
Date
1991-03-12
Location
VERO BEACH, FL, USA
Coordinates
27.720767, -80.390823
Injuries
Highest injury
MINR
Fatal
0
Serious
0
Minor
1
Uninjured
0
Total aboard
1
Aircraft
Make
BELL
Model
UH-1B
Registration
N9687R
FAR Part
137
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
IMPROPER MAINTENANCE ADJUSTMENT BY COMPANY MAINTENANCE PERSONNEL RESULTING IN OVERTORQUE OF A TAILBOOM ATTACH BOLT WHICH ALLOWED THE TAILBOOM TO SHIFT. THIS DISENGAGED THE TAIL ROTOR DRIVE SHAFT AT A COUPLING RESULTING IN THE LOSS OF TAIL ROTOR DRIVE.