Toxic fumes - Skybrary

Fumes can be the first indication of a more serious problem and should be treated with suspicion. On 9 June 2014, a 'burning odour' of undetermined origin became evident in the rear galley of an aircraft as soon as the aircraft powered up for take off. Initially, it was dismissed as not uncommon and likely to soon dissipate, but it continued and affected cabin crew were unable to continue their normal duties and received oxygen to assist recovery. En route diversion was considered but flight completion chosen. It was found that the rear pressure bulkhead insulation had not been correctly refitted following maintenance and had collapsed onto the APU bleed air duct.

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