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I seem to remember an EE Lightning chewing bricks from a hangar office wall and the pilot climbing out the cockpit onto the roof of the offices?

Quite right. Loss of brakes on a bend in the peri track behind the control tower at Coltishall. I think the plane tried to enter the 19Sqdn Leaders office. Pilot couldn’t shut the engine down for some reason so took to the roof. Happened just before I was poster to 19Sqdn.