I feel that the “flying Bridge” should be as one with the main superstructure.
If the flying bridge on yours is loose, I can only think that the previous builder might have been building your model to the first prototype Trent ( when called FAB 4 and painted bright yellow and grey hull) as she was the only boat with the flying bridge at the forward end of the main cabin.
If you pm me for my email address and then send me some pics of what you are meaning I’ll be able to help you more.
neil.