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Please include the MMSI or Plane Tail Number in the name, tag or description. Please read our guidelines on photo criteria for approval.
All photos must be your own.
Please include the MMSI or Plane Tail Number in the name, tag or description. Please read our guidelines on photo criteria for approval.
BA 737-436 landing r/w 23 at Glasgow Sept 2005.
Incident 30th May 2003.
Whilst in the cruise the crew began to feel some discomfort in their ears. This was shortly followed
by the cabin altitude warning horn which indicated that the cabin altitude had exceeded 10,000 feet
and this was seen to continue to climb on the cockpit gauge. At the same time, the primary AUTO
mode of the pressure control failed, shortly followed by the secondary STBY mode. The crew
selected the first manual pressure control mode, but were unable to control the cabin altitude. An
emergency descent and subsequent diversion to Lyon was carried out. The failure of the
pressurisation control system was traced to burnt electrical wiring in the area aft of the aft cargo hold.
The wiring loom had been damaged by abrasion with either a p-clip or 'zip' strap that, over time,
resulted in the conductors becoming exposed, leading to short circuits and subsequent burning of the
wires. There was no other damage. The wiring for all the modes of operation of the rear outflow
valve, in addition to other services, run through this loom. May 2003
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