Aug 11, 1991
Accident
Substantial VALPARAISO, IN
Injuries1 serious
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
THE PILOT IN COMMAND'S FAILURE TO MAINTAIN AIRSPEED. A FACTOR CONTRIBUTING WAS IMPROPER MAINTENANCE (DESIGN CHANGE) PERFORMED BY AN UNQUALIFIED PERSON (PILOT IN COMMAND).
NTSB CHI91LA256