The aircraft had tech (fuel) stopped in Canada (Gander/Halifax?-cant remember now which one ) on its way back from the Caribbean and was not impounded.
The crew were advised though by Luton ops that the company would be going bust at midnight. The Captain (Pete Hogg) elected to continue in order to get the passengers and crew home-without stranding them. They also wanted to depart before the Canadian authorities heard of the companies collapse and did impound the aircraft.
It was an emotional return to Luton-the following morning with a large number of company personnel there waiting for its return.
Technically though the decision was questionable as it was argued that once the AOC was suspended at midnight-the insurance was also likely to be invalid. (never found out if that was in fact the case though?)
The aircraft was flying through the midnight period and landed back the morning after.