London Fire Brigade station manager Bruce Grain, one of the first firefighters at the scene, said it "was absolute chaos" but he revealed the fire was put out within 20 minutes. The pilot was believed to be Captain Pete Barnes from Berkshire.
More top news
The Ashford International to Canterbury West rail line should reopen on Thursday. It has been closed since a train derailed on Sunday.
Wednesday morning's weather for the east of the region
Wednesday morning's weather for the west of the region