Aug 31, 1989
Incident
CHICAGO, IL
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
THE FAILURE OF THE CONTROLLER TO CLARIFY THE CONFUSING COMMUNICATIONS, TO CORRECT THE PILOT'S MISINTERPRETATION OF THE INSTRUCTIONS BEING GIVEN, AND THE FAILURE OF THE SUPERVISOR TO PROPERLY MONITOR THE SITUATION. FACTORS RELATED TO THE INCIDENT WERE THE PILOT'S MISINTERPRETATION OF THE CLEARANCE, THE CONTROLLERS EXPECTANCY AND AURAL PERCEPTION OF THE COMMUNICATIONS.
NTSB CHI89IA180