Event Details

Title:Pressurization emergency, Final Report by the Aircraft Accident Investigation Bureau concerning the incident to the MCDonnell Douglas DC-9-82 aircraft, LN-RML operated by SAS Scandinavian Airlines System under flight number SK 682 on 13 July 2003
Micro summary:Following cabin depressurization, this MD-82 made an emergency descent and diversion.
Event Time:2003-07-13 at 1246 UTC
File Name:2003-07-13-CH.pdf
Publishing Agency:Aircraft Accident Investigation Bureau (AAIB)
Publishing Country:Switzerland
Report number:1865
Site of event:Cruise
Departure:Leonardo Da Vinci International Airport (Fiumicino), Fiumicino, Italy
Destination:Zurich International Airport (Kloten Airport), Kloten, Switzerland
Airplane Type(s):McDonnell Douglas DC-9-82 (MD-82)
Flight Phase:Cruise
Type of flight:Revenue
Serious Injuries:
Other Injuries:0
Executive Summary:On July 13th 2003 a McDonnell Douglas MD-82, registration LN-RML, operated by Scandinavian Airlines System (SAS) as flight SK 682, enroute from Rome to Copenhagen, made an emergency descent followed by a diversion to Zurich.

The emergency descent was executed due to cabin supply pressure drop during cruise causing a cabin climb with an uncontrollable rate of approximately 1000 feet/min.

The flight crew proceeded with the emergency checklist and declared an emergency situation. At 17 000 ft AMSL the Passenger Oxygen Masks deployed automatically.

An uneventful approach and landing was made in Zurich. No injuries to passengers or flight crew occurred, one passenger suffered pain in his ears.

The loss of cabin pressure was caused by a technical fault. An internal short-circuit in a computer (ACARS), not in direct relation with the air-condition system, caused an uncontrolled signal to shut down the air-condition system.
Learning Keywords:Systems - Electrical
Systems - Pressurization
Close match:Pressurization failure, Boeing 737-436, G-DOCE
Pressurization failure, BAe 146-300, EI-CLG


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