57 Sqdn did loose a Canberra!
As Beeayeate said, at this time 57 Sqdn were at Conningsby with B2's. So was I, as a Cpl Radar Fitter in the Radar Bay of ARSF.
During my time there, Oct 56 to Sept 57, a 57 Sqdn a/c was destroyed by fire while it was in the ASF hangar with a fuel leak. Apparently leaking fuel dripped onto an unprotected inspection lamp.
I actually emptied a hand held foam extinguisher onto to fire, with little or no effect. The Fire Section arrived on the scene and seemed to have the fire somewhat under control when the spare starter cartridges, which should have been removed before the a/c was put into the hangar, went up. The a/c was burnt in half and a total write off.