HEATHROW, The PM's plane: I said that things happen on these trips....
We are grounded on the runway at Heathrow since all flights into and out of the airport have been stopped. Out of the window we can see why. A BA plane which has fallen short of the runway is surrounded by every fire engine here after what our pilot describes as a "serious incident".
It will take warp factor 4 for us to make it to Beijing on time for morning meetings with the Chinese hierarchy.
Update: Our plane is beginning a slow crawl to the runway. I suspect that others not travelling with the head honcho may face rather longer delays.