Some while after I first saw it there, it was recovered, repaired and returned to service with Dan-Air. It was distinctive because it had a 4 metre (or so) brace on the top of the fuselage from just behind the crown point to about abeam the leading edge. Apparently a support for where the aircraft had broken its back.
Not a repair, although the aircraft was seriously damaged with its initial owner Mexicana and was sold off afterwards. It operated for a couple of other carriers before Dan-Air got it. All Mexicana's 727s were like this as they fitted JATO assistance bottles under the fuselage in case of hot/high engine failure departing from Mexico City, and the various services from that area had to be relocated, hence the hump. Mexicana kept most of their 727s for the full duration, so the others were not seen in Europe. After Dan-Air it moved on elsewhere and eventually was converted to a freighter. Various other Mexican operators did other modifications to deal with the high elevation as well; DC-10s there were a special DC-10-15 hybrid, with the intermediate DC-10-10 structure etc but the long-haul DC-10-30 larger engines.