Aeroméxico Flight 110

Aeroméxico Flight 110 was a scheduled domestic commercial flight from Acapulco to Guadalajara. 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.

Aircraft
The aircraft involved was a DC-9-32 that was delivered to Aeroméxico in 1974 and was named Tijuana. It was powered by two Pratt & Whitney JT8D-17 turbofan engines.

Accident
After departing Acapulco and reaching 31000 ft. 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 6000 ft it crashed into the Sierra de Guerrero mountains.

Investigation
The investigation determined that the crew had failed to follow the emergency procedures.