A separate source says the accident was at Gerona as opposed to Genoa. It seems to have lasted to the end with Dan-Air and then gone to Nigeria. A photo
here on !!!!!!!!!!!!!! shows the nose (only) remaining just a couple of years ago in "Hampshire" - I might guess Lasham.
I have a note I flew it in the 1980s when Dan-Air operated for a short time an independent operation on Manchester to Heathrow. 1730 weekday departure from Manchester, only about a dozen or so passengers. Route didn't last long, inevitably.
The first Dan-Air One-Elevens were indeed two ex-American Airlines, who built up a fleet of some 30 in the 1960s, then almost immediately started selling them off again. If I recall correctly they were needed for an increase in fleet capacity following the end of British Eagle, with Dan-Air picking up their former charter work. They were operated initially out of Luton, not a Dan-Air base at the time. Eagle were, I suppose, the last charter operator to be based at Heathrow, and Luton was probably the best Dan-Air could do.