Parts like that may have been fitted to more than one airframe during their life. Indeed, I would say it is more than likely. Especially once BAES took over the deep maintenance in ~2006, logistic efficiencies meant that parts being removed from aircraft as they entered maintenance were often added to different aircraft about to leave maintenance, reducing storage and inventory requirements (and saving a lot of money). The only way to find out which airframe(s), and when, will be through painstaking correlation of maintenance records. This was primarily done by computer, and any hard copy records which were printed may well have been destroyed after a minimum retention period. I’m sure a friendly engineer will be able to advise, but I think it highly unlikely that you will be able to establish much of a provenance. Sorry.