Accident
Last updated: 24 April 2014
Status:
Datum:Montag 31 März 1986
Zeit:09:11
Flugzeugtyp:Silhouette image of generic B722 model; specific model in this crash may look slightly different
Boeing 727-264
Fluggesellschaft:Mexicana
Kennzeichen: XA-MEM
Werknummer: 22414/1748
Baujahr: 1981-05-04 (4 years 11 months)
Triebwerk: 3 Pratt & Whitney JT8D-17R
Besatzung:Todesopfer: 8 / Insassen: 8
Fluggäste:Todesopfer: 159 / Insassen: 159
Gesamt:Todesopfer: 167 / Insassen: 167
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Las Mesas (   Mexiko) show on map
Flugphase: Während des Fluges (ENR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Mexico City-Benito Juárez International Airport (MEX/MMMX), Mexiko
Flug nach:Puerto Vallarta-Gustavo D. Ordaz Airport (PVR/MMPR), Mexiko
Flugnummer: 940
Unfallbericht:
Flight 940 took off from Mexico City (MEX) at 08:40 for a flight to Puerto Vallarta (PVR), Mazatlán (MZT) and Los Angeles (LAX). The left main gear brake was overheated during the take-off run. When the aircraft had reached FL310 the heat caused a tyre on the left hand main gear to explode. Fuel and hydraulic lines were ruptured and electrical cables severed resulting in a cabin decompression. An emergency was declared, but spilt fuel ignited and caused a massive fire on board. Control was lost and the aircraft crashed into a mountain in the Sierra Madre, at an elevation of 9000 feet. It was found that the tire had been serviced with air rather than nitrogen. The air, under high temperature and pressure, resulted in a chemical reaction with the tire itself. This led to a chemical explosion of the tire.

Informationsquelle:
» Kevin A. Darcy
» Lloyds List
» Violeta Hernandez


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Map
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 Mexico City-Benito Juárez International Airport to Puerto Vallarta-Gustavo D. Ordaz Airport as the crow flies is 656 km (410 miles).

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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