Summary
On December 23, 1991, a Mcdonnell Douglas DC-9-82 (N497AA) was involved in an incident near Chicago, IL. All 315 people aboard were uninjured.
The National Transportation Safety Board determined the probable cause of this incident to be: THE LOCAL CONTROLLER'S NOT UNDERSTANDING READ BACK OF RADIO COMMUNICATIONS. FACTORS INCLUDE THE PILOT-IN-COMMAND OF FLIGHT 73 NOT UNDERSTANDING VERBAL INSTRUCTIONS; LOCAL CONTROLLER NOT VISUALLY IDENTIFYING THE AIRCRAFT; AND INADEQUATE SURVEILLANCE (FAA) IN THE TOWER.
This incident is documented in NTSB report CHI92IA061. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N497AA.
Accident Details
Probable Cause and Findings
THE LOCAL CONTROLLER'S NOT UNDERSTANDING READ BACK OF RADIO COMMUNICATIONS. FACTORS INCLUDE THE PILOT-IN-COMMAND OF FLIGHT 73 NOT UNDERSTANDING VERBAL INSTRUCTIONS; LOCAL CONTROLLER NOT VISUALLY IDENTIFYING THE AIRCRAFT; AND INADEQUATE SURVEILLANCE (FAA) IN THE TOWER.
Aircraft Information
Registered Owner (Historical)
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI92IA061