Yesterday lunchtime someone parked a fire engine on the edge of the taxiway between the BA west base run-pen & the adjacent BAA security post. Unfortunately the BA 744 heading into the west base has a wing span = 'X' & the space available between the pen & the parked fire engine was 'X'- several ft. Hence 1 bent fire engine & 1 badly damaged RB211. I understand a lot of photo's were being taken by the gathering throng of officials etc, so sure 1 will turn up before too long.