So to follow up, there was no problem with communications between ground staff and flight deck crew.....in fact no pilots were anywhere near the aeroplane. Nobody was involved except a tow team from a Gatwick handling company beginning with 'A'- they appear to have been going at high speed around a corner when said aeroplane and tow truck parted company, and said aeroplane struck truck. Word on the street (alright, Manor Royal sandwich bar) is seven figure damage, around 6 weeks repair. And now no doubt a tussle over who exactly was to blame!