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Safety Recommendation Details

Safety Recommendation A-73-022
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: NOT PROCEED WITH THE SCHEDULED INSTALLATION OF "BRITE" DISPLAYS AT OTHER ASDE-EQUIPPED FACILITIES WHICH NOW USE THE DIRECT VIEW RADAR DISPLAY UNTIL SATISFACTORY OPERATION OF "BRITE" EQUIPMENT IS ACHIEVED AT THE THREE FACILITIES WHERE IT IS NOW INSTALLED.
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: A-73-22-THE FAA SYSTEM RESEARCH AND DEVELOPMENT SERVICE HAVE INITIATED ASDE IMPROVEMENTS TO PERMIT ITS USE IN THE NAS SYSTEM UNTIL SUCH TIME AS A NEW "ALL WEATHER" AIR GROUND GUIDANCE AND CONTROL SYSTEM IS DEVELOPED. THE FAA RECOGNIZE THAT THE ASDE BRITE PRESENTATION IS INFERIOR TO THE DIRECT VIEW CATHODE RAY PRESENTATION, BUT STATE, IT HAS THE ADVANTAGE OF PERMITTING THE CONTROLLER TO LOOK AT THE DISPLAY WITHOUT RESORTING TO A HOOD-TYPE VIEWER.