Source: Simon Hradecky | www.avherald.com

A British Airways Boeing 747-400, registration G-CIVF performing flight BA-283 from London Heathrow,EN (UK) to Los Angeles,CA (USA), was enroute at FL380 about 470nm north of Chicago,IL (USA), in Canadian Airspace over Ontario, when the crew declared PAN PAN reporting an electrical burning odour on board. The aircraft diverted to Chicago, where the aircraft landed safely on runway 10L about 65 minutes later.

The occurrence aircraft is still on the ground in Chicago about 27 hours after landing.