Loss of pressurization Incident Avro RJ100 HB-IXW, 02 Jul 2012
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ASN Wikibase Occurrence # 147164
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Time:12:15 LT
Type:Silhouette image of generic RJ1H model; specific model in this crash may look slightly different    
Avro RJ100
Owner/operator:Swiss International Airlines
Registration: HB-IXW
MSN: E3272
Fatalities:Fatalities: 0 / Occupants: 95
Other fatalities:0
Aircraft damage: None
Location:24 NM south-east of Rolampont beacon -   France
Phase: En route
Nature:Passenger - Scheduled
Departure airport:LSZH
Destination airport:EGLC
Confidence Rating: Accident investigation report completed and information captured
At 09:47 UTC the Avro RJ100, registration HB-IXW took off on a scheduled passenger flight, LX456, from Zurich (LSZH) to London City (EGLC).
After a flight time of approximately 22 minutes and when in climb at FL244, various warning lights illuminated, including the R ZONE HI TEMP warning. This warning triggered several automatic shutdowns, including the shutdown of airconditioning pack 2. At this time, the aircraft was 24 NM south-east of the Rolampont omni-directional radio beacon (RLP) in France.
Since airconditioning pack 1 was already deactivated at the commencement of the flight, the cockpit crew realised that cabin pressurisation was no longer ensured and that the pressure inside the aircraft would drop. The crew donned their oxygen masks. A good minute after the first alerts, the CABIN HI ALT warning light illuminated. The crew reported the emergency situation to the Reims Control air traffic control centre and initiated an emergency descent.
Shortly afterwards the oxygen masks in the cabin were automatically deployed. These were donned by the passengers in accordance with the cabin crew’s instructions. At 10:15:40 UTC the aircraft reached FL 100. After a detailed analysis and assessment of the situation, the crew decided to return to Zurich. The approach and landing were uneventful. None of the passengers or crew was injured.

The serious incident is attributable to the fact that after a defect in the right bleed air system the cabin pressurisation system failed completely at FL 244 (7437 m) and the crew were forced to make an emergency descent to a safe altitude. The fact that airconditioning pack 1 had been deactivated prior to the flight contributed to the serious incident.



Accident investigation:
Investigating agency: 
Status: Investigation completed
Download report: Final report
Other occurrences involving this aircraft

21 Aug 2003 HB-IXW Swiss International Air Lines 0 Zürich-Kloten Airport (ZRH/LSZH) min

Revision history:

29-Jul-2012 04:50 Alpine Flight Added
18-Jan-2014 19:46 harro Updated [Location, Source, Narrative]

Corrections or additions? ... Edit this accident description

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