NONE · Aerospatiale ATR-42-300 · 1998-03-10 · FORT MYERS, FL, USA
Event
NTSB number
MIA98IA100
Event ID
20001211X09735
Type
Incident
Date
1998-03-10
Location
FORT MYERS, FL, USA
Coordinates
26.510711, -81.699386
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
47
Total aboard
47
Aircraft
Make
Aerospatiale
Model
ATR-42-300
Registration
N275BC
FAR Part
121
Engines
2
Damage
—
Conditions
Light
DAYL
Weather
VMC
Probable cause
The failure of the No. 1 generator field excitation return wire terminal lug due to improper installation of the field excitation return wire by maintenance personnel; the subsequent failure of the No. 2 generator due to overvoltage, caused by the momentary closure of the No. 1 generator contactor, as a result of the flight crew's attempt to reset the No. 1 generator, while an overvoltage condition existed at its POR, due to the shorted failure of the No. 1 GCU diode CR17; and the rapid failure of the aircraft's main battery, accelerated by its existing depleted condition, following an extended period of inadequate charging, due to a damaged electrical system.