BOEING 737

Umea — April 4, 2012

Event Information

DateApril 4, 2012
Event TypeINC
NTSB NumberDCA12WA061
Event ID20120411X33014
LocationUmea
CountrySW
Highest InjuryNONE

Aircraft

MakeBOEING
Model737
FAR Part129

Conditions

Light Condition—
Weather—

Injuries

Fatal0
Serious0
Minor0
None122
Total Injured0

Full Narrative

On April 4, 2012, at approximately 0950 UTC, a B737-600, registration LN-RPS, operated by Scandinavian Airlines, experienced a failure of the left bleed system while climbing through flight level (FL) 370. The climb continued with only the right system operational to FL410. While at FL410, the right bleed system also failed. An emergency descent to 10,000 feet was initiated, and oxygen masks were deployed. The flight diverted to Umeå, Sweden(ESNU). There was no damage to the aircraft and no injuries to the 6 crew and 116 passengers.

The investigation is being conducted by the Swedish Accident Investigation Authority. The NTSB has appointed an Accredited Representative to assist the investigation under the provisions of ICAO Annex 13 as the State of Manufacture and Design of the airplane.

All inquiries should be directed to the Swedish Accident Investigation Authority at:


Swedish Accident Investigation Board
P.O. Box 12538
SE-102 29 Stockholm

Website: http://www.havkom.se

About This NTSB Record

This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.

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