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Safety Recommendation Details

Safety Recommendation A-73-024
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: ESTABLISH STANDARD PROCEDURES FOR THE USE OF ASDE RADAR, AND PUBLISH SUCH PROCEDURES IN APPROPRIATE AIR TRAFFIC HANDBOOKS.
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: 12/3/1975
Addressee(s) and Addressee Status: FAA (Closed - Acceptable Action)
Keyword(s):

Safety Recommendation History
From: NTSB
To: FAA
Date: 12/3/1975
Response: Closed--Acceptable Action

From: FAA
To: NTSB
Date: 6/1/1973
Response: A CURRENT ASDE STAFF STUDY BY FAA'S AIR TRAFFIC SERVICE INDICATES A NEED FOR MORE SPECIFIC GUIDELINES CONCERNING "HOW AND WHEN" ASDE SHOULD BE USED. 8/15/75 HANDBOOK 7110.8C WAS REISSUED ON 1/1/75 AND REDESIGNATED 7110.8D. THE PROPOSED REVISION SUGGESTED BY FAA AIR TRAFFIC SERVICE SPECIALISTS WAS INCORPORATED IN THE REVISED AND REDESIGNATED HANDBOOK UNDER SECTIONS 1680, 1681 AND 1682.