An air carrier Mechanic reports on his efforts to have a remote Contract Maintenance Mechanic properly determine the extent of under wing flap Dove-tail damage caused by a shredded number 3 main landing gear tire. Aircraft was repositioned to company Maintenance Base per insistence of air carrier Mechanic; where the flap fairing damage required repair.

Narrative

Captain 'X' on pre-flight saw number 3 tire shredded. I called Contract Maintenance provider to remove and replace number 3 tire and check the surrounding area for damage. The tire was replaced; but only had one tire at this station; so I suggest we reposition the aircraft to ZZZ. At this time Captain 'Y' called me and told me there was some damage. I then called Contract Maintenance again to have the Line Mechanic inspect the aircraft for damage; he told me the aircraft only had a bruise from the shredded portion of the tire hitting the Dove-tail fairing of the under side of the flap; and no damage was done in any way to prevent the operation of the flap; and the aircraft was good for service. I still insisted we reposition the aircraft to ZZZ; to R/R (Remove/Replace) the number 4 tire and inspect for further damage. Upon arrival of aircraft in ZZZ; the Maintenance Supervisor said some skin repair will have to be done and only when they remove the skin will they know of any further damage. Maintenance cards have been written up with regards to the damage for inspection and repair; and also to R/R number 4 tire.