Brussels RJ1H near Amsterdam on Apr 19th 2012, loss of cabin pressure

Last Update: June 11, 2013 / 23:40:20 GMT/Zulu time

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Incident Facts

Date of incident
Apr 19, 2012

Flight number
SN-2309

Aircraft Registration
OO-DWB

ICAO Type Designator
RJ1H

A Brussels Airlines Avro RJ-100, registration OO-DWB performing flight SN-2309 from Brussels (Belgium) to Stockholm Bromma (Sweden), was climbing through FL290 about 20nm northnortheast of Amsterdam (Netherlands) when the crew declared emergency reporting the loss of cabin pressure and descended the aircraft to FL100 reaching FL100 within 6 minutes (average sinkrate 3200fpm). The aircraft returned to Brussels for a safe landing on runway 25L about 40 minutes after initiating the descent.

A replacement RJ-85 registration OO-DJZ is estimated to reach Stockholm with a delay of 2.5 hours.

On Jun 11th 2013 Belgium's Air Accident Investigation Unit (BAAIU) released their preliminary report reporting that the loss of cabin pressure was caused by a crack of just over one meter (1089mm, 43 inches) in the left hand aft lower skin panel at the lap joint area below the aft toilet service door. The BAAIU said: "The fracture was due to multiple origin fatigue crack propagation which initiated in the chemical etched channel on the external surface of the skin panel."

The BAAIU reported that British Aerospace Systems released a service bulletin recommending the inspection of the area in June 2012, the service bulletin was mandated by EASA as airworthiness directive by September 2012. The BAAIU is satisfied with and supportts the safety action taken and issued no further recommendations so far.
Incident Facts

Date of incident
Apr 19, 2012

Flight number
SN-2309

Aircraft Registration
OO-DWB

ICAO Type Designator
RJ1H

This article is published under license from Avherald.com. © of text by Avherald.com.
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