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Safety Recommendation Details

Safety Recommendation A-73-023
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: CONTINGENT UPON FAVORABLE RESULTS OF THE EVALUATION OF THE NEW MODEL ASDE "BRITE" DISPLAY CURRENTLY BEING CONDUCTED BY THE TRANSPORTATION SYSTEMS CENTER, INSTALL THAT EQUIPMENT FIRST AT THE THREE LOCATIONS WHERE "BRITE" EQUIPMENT IS NOW USED.
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: THE FAA AGREES THAT IMPROVEMENTS TO ASDE DEVELOPED BY TSC SHOULD BE IMPLEMENTED AT THE THREE LOCATIONS. HOWEVER, IN THE INTERIM THEIR AIRWAY FACILITIES SERVICE IS MAKING A CONCERTED EFFORT TO IMPROVE THE PERFORMANCE OF THE PRESENT ASDE BRITE.