Mar 18, 1996
Incident
DETROIT, MI
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 121
Probable Cause
a defective diode in the number two stabilizer actuator that produced an intermittent loss of electrical motor power during transient, closed loop control of the actuator. A factor was the intermittent open circuit in the elevator servo controller electrovalve coil.
NTSB CHI96IA109