Jet2 suffered a few issues with their 757-200 fleet yesterday. I believe G-LSAE had to turn back after departure from FUE on LS910 yesterday and land at TFS. I believe a technical issue was the cause.
G-LSAI was meant to go to AYT on LS895 but was swapped due to a fault too.
I also noticed G-LSAC moved from MAN - SNN today. I assume for some work? I flew on AC last week.