An Air Canada Airbus A330-300, registration C-GHLM performing flight AC-111 from Montreal,QC to Vancouver,BC (Canada), was enroute at FL400 about 120nm east of Vancouver when the crew received a "ENG 2 BLEED FAULT" indication, declared emergency reporting the loss of cabin pressure and initiated an emergency descent to minimum safe altitude. Descending through 13,000 feet the operation of the #2 engine bleed air system could be restored. The passenger oxygen masks were not released. The aircraft continued for a safe landing in Vancouver about 25 minutes later.
The Canadian TSB reported the aircraft had been dispatched under minimum equipment list requirements with the left hand engine's bleed air system inoperative.