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Safety Recommendation Details

Safety Recommendation A-73-021
Details
Synopsis: DURING THE NATIONAL TRANSPORTATION SAFETY BOARD'S INVESTIGATION OF THE GROUND COLLISION ACCIDENT WHICH OCCURRED AT O'HARE INTERNATIONALAIRPORT, CHICAGO, ILLINOIS, ON DECEMBER 20, 1972, WE LEARNED THAT VISIBILITY FROM THE TOWER CAB, OFFICIALLY REPORTED AS ONE-FOURTH OF A MILE, LIMITED SEVERELY THE CONTROLLERS' ABILITY TO SEE GROUND TRAFFIC ON THE AIRPORT. THEREFORE, CONTROLLER PERSONNEL CONCERNED WITH THE TWO AIRCRAFT INVOLVED IN THE COLLISION WERE UNABLE TO MONITOR VISUALLY THE MOVEMENTS OF EITHER AIRCRAFT AT ANY TIME, EXCEPT FOR A BRIEF TIME WHEN THE DC-9 TAXIED FROM THE TERMINAL GATE.UNDER THE EXISTING CIRCUMSTANCES, NO ONE IN THE TOWER CAB SAW THE ACCIDENT.
Recommendation: STANDARDIZE CONFIGURATIONS, ALIGNMENT TECHNIQUES, AND EQUIPMENT MODIFICATIONS AT THE THREE EXISTING ASDE "BRITE" FACILITIES IN AN EFFORT TO IMPROVE THE PERFORMANCE OF THAT EQUIPMENT.
Original recommendation transmittal letter: PDF
Overall Status: Closed - Acceptable Action
Mode: Aviation
Location: Chicago, IL, United States
Is Reiterated: No
Is Hazmat: No
Is NPRM: No
Accident #: 81275
Accident Reports: North Central Airlines, Inc., McDonnell Douglas DC-9-31, N954N and Delta Air Lines, Inc., Convair CV-880, N8807E
Report #: AAR-73-15
Accident Date: 12/20/1972
Issue Date: 5/17/1973
Date Closed: 8/16/1974
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 8/16/1974
Response: Closed--Acceptable Action.

From: FAA
To: NTSB
Date: 6/1/1973
Response: THREE ASDE BRITE DISPLAYS MENTIONED ARE NONSTANDARD INSTALLATIONS. THE FAA SYSTEMS RESEARCH AND DEVELOPMENT SERVICE HAS BEEN WORKING THROUGH TSC WITH TEXAS INSTRUMENTS ON AN ASDE-2 RELIABILITY IMPROVEMENT STUDY WHICH ENCOMPASSES ALL OF THE MAJOR TECHNICAL AREAS. WHEN THE REPORT IS FINALIZED--SERIOUS CONSIDERATION WILL BE GIVEN TO RECOMMENDATIONS TO MODIFY AND IMPROVE THE PERFORMANCE OF ASDE-2.