British Airways Boeing 747-436 G-BYGF operating yesterday’s delayed BA26 Hong Kong – London Heathrow as BA26X departed Hong Kong early this afternoon local time but diverted to Beijing where it remained on the ground for two hours. This diversion appears to have been medical. The length of the stop in Beijing meant crew could not reach London Heathrow within their duty hours so the aircraft further diverted via Copenhagen where a new crew had been ferried in the meantime.