Nov. 24/14-The Airbus A-330-300, C-GHKX, operated by Air Canada as flight number ACA420 from Toronto (CYYZ) to Montreal (CYUL) with 9 crew and 163 passengers on board declared a low fuel emergency after the aircraft’s second missed approach. The crew then requested a diversion to Burlington, Vt., (KBTV) and landed uneventfully.