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| Title: | Near-miss in cruise, Near Midair Collision, American Airlines, Inc., Douglas DC10, N124, and Trans-World Airlines, Inc., Lockheed-1011, N11002, Near Carleton, Michigan, November 26, 1975 |
| Micro summary: | Near-miss at FL350 involving this American Airlines DC-10 and Lockheed L-1011, avoided by an evasive maneuver by the DC-10. |
| Event Time: | 1975-11-26 at 1923:11 EST |
| File Name: | 1975-11-26-US.pdf |
| Publishing Agency: | National Transportation Safety Board (NTSB) |
| Publishing Country: | USA |
| Report number: | NTSB-AAR-76-03 |
| Pages: | 22 |
| Site of event: | Cruise, 35000', 23 nm W of Carleton, MI |
| Latitude/Longitude: | N42°02'32"; 083°58'00"W |
| First Airplane | Second Airplane | ||
| Departure: | Chicago O'Hare International Airport, Chicago, Illinois, USA | Philadelphia International Airport, Philadelphia, Pensylvania, USA | |
| Destination: | Newark Liberty International Airport, Newark, New Jersey, USA | Los Angeles International Airport, Los Angeles, California, USA | |
| Airplane Type(s): | McDonnell Douglas DC-10 | Lockheed L-1011 | |
| Flight Phase: | Cruise | Cruise | |
| Registration(s): | N124 | N11002 | |
| Operator(s): | American Airlines | Trans World Airlines | |
| Type of flight: | Revenue | Revenue | |
| Occupants: | |||
| Fatalities: | |||
| Serious Injuries: | |||
| Minor/Non-Injured: | |||
| Other Injuries: |
| Executive Summary: | On November 26, 1975, American Airlines Douglas DC-10 and a Trans World Airlines Lockheed-1011 almost collided head-on at 35,000 feet near Carleton, Michigan. Both aircraft were operating in instrument meteorological conditions, within positive control airspace, and while under the control of the Cleveland Air Route Traffic Control Center. As a result of the evasive maneuver that had to be executed by the captain of the DC-10, 3 aircraft occupants were injured seriously and 21 were injured slightly. The cabin's interior was damaged extensively. None of the occupants of the L-1011 was injured. The National Transportation Safety Board determines that the probable cause of this near-collision was the failure of the radar controller to apply prescribed separation criteria when he first became aware of a potential traffic conflict which necessitated an abrupt collision avoidance maneuver.. He also allowed secondary duties to interfere with the timely detection of the impending traffic conflict when it was displayed clearly on his radarscope. Contributing to the accident was an incomplete sector briefing during the change of controller personnel~about 1 minute before the accident. |
| Learning Keywords: | Operations - Airspace - Air Proximity |
| Operations - Airspace - Air Traffic Control |
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