The FNC incident has been upgraded to an accident by the CAA.
Major damage, not just skin, it has frame damage etc.
BHX was the tug hitting the aircraft, not the aircraft hitting the tug.
Airtours also had a DC10 with a damaged middle leg, grounded in MBJ at the same time.
This was caused by BA trying to change a wheel on the leg, incorrectly.
Hope this helps.