On November 8, 1981, the McDonnell Douglas DC-9 operating the flight experienced a cabin decompression and crashed near Zihuatanejo while initiating an emergency descent, killing all 18 people on board.

[1] The aircraft involved was a DC-9-32 that was delivered to Aeroméxico in 1974 and was named Tijuana.

[2] After departing Acapulco and reaching 31,000 feet (9,400 m), the captain reported to air traffic control that the aircraft's cabin had depressurized and requested to return to Acapulco for an emergency landing.

The aircraft initiated an emergency descent, but at 6,000 feet (1,800 m), it crashed into the Sierra de Guerrero mountains.

[1] The investigation determined that the crew had failed to follow the emergency procedures.