Flybe aircraft told to line up, with another aircraft on 5 mile final (regular occurence at any airport). Comms lost with aircraft on approach.
Speculating as ever, but if this were the case then I should have thought that the landing ac would have followed some sort lost coms procedure, i.e. go around, enter a hold somewhere, 7600 and try to resolve the issue. Shirley it wouldn't have been been given a landing clearance if the Flybe had been given a line up clearance?
Or... the Flybe may have been given a line up after clearance and our infringing ac may have been number 2 on approach and after the landing of number 1 Flybe mistook it for his conditional subject??
Crossed wires somewhere no doubt... will be interesting to find out what actually happend.