The pilot was turning into the parking area, intending to taxy between aircraft parked in parallel rows. As the turn was completed the left wing tip struck the spinner of the aircraft at the start of the left hand row. This aircraft was undamaged, however the wing tip of the taxying aircraft was pushed rearwards with consequent damage to the rear spar fuselage carry-through member. During the turn into the parking area one of the passengers interrupted the pilot's concentration by pointing out that the parking position from whence they had departed, was still vacant. The pilot did not notice that the aircraft had moved almost 2 metres to the left of the taxiway guideline until the collision was imminent.
