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Date:Sunday 21 September 1969
Type:Silhouette image of generic B721 model; specific model in this crash may look slightly different
Boeing 727-64
Operator:Mexicana de Aviación
Registration: XA-SEJ
MSN: 19255/331
First flight: 1966-10-26 (2 years 11 months)
Engines: 3 Pratt & Whitney JT8D-7B
Crew:Fatalities: 5 / Occupants: 7
Passengers:Fatalities: 22 / Occupants: 111
Total:Fatalities: 27 / Occupants: 118
Aircraft damage: Damaged beyond repair
Location:1,5 km (0.9 mls) NE of Mexico City-Juarez International Airport (MEX) (   Mexico)
Phase: Approach (APR)
Nature:International Scheduled Passenger
Departure airport:Chicago-O'Hare International Airport, IL (ORD/KORD), United States of America
Destination airport:Mexico City-Benito Juárez International Airport (MEX/MMMX), Mexico
The Boeing 727 was cleared for a runway 23L ILS approach at Mexico City-Juarez International Airport (MEX) when it suddenly lost height and struck the ground 1500 m short of the runway. The aircraft became airborne again until the undercarriage and forward fuselage struck a railway embankment. Aircraft configuration at the time of the accident was gear down, flaps 30deg, leading edge slats extended, spoilers retracted, stabilizer at 10.25 units nose up.
No data could be retrieved from the Flight Data Recorder because it had been incorrectly installed two days prior to the accident. The Cockpit Voice Recorder had been removed and no replacement had been installed.

Probable Cause:

PROBABLE CAUSE: Undetermined.


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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Chicago-O'Hare International Airport, IL to Mexico City-Benito Juárez International Airport as the crow flies is 2700 km (1687 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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Boeing 727

  • 1832 built
  • 13th loss
  • 11th fatal accident
  • 9th worst accident (at the time)
  • 43rd worst accident (currently)
» safety profile

  • 3rd worst accident (at the time)
  • 7th worst accident (currently)
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