Boris Johnson is expected to visit the Crossrail site at Tottenham court road later.
The mayor will be questioned on yesterday's government spending review.
A commitment of £2 million was made to look into the north-south rail link for cross rail 2 in yesterday's spending report by George Osborne.
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Captain Mike Green, a senior flying instructor, was piloting the two seater helicopter involved in the crash.
A memorial service marked the 30th anniversary of the King's Cross fire which claimed the lives of 31 people.
The athlete, who has been out injured since a motorbike crash in January, has been told he wont receive his annual £21,000 lottery funding.