Jet2 757s
Yeah very common for airlines to rotate aircraft.
AI and AA were swapped in TFS on fri night, for about a week we think due to routine maintenace on AA - its required in the hangar in LBA.
The 757s havnt been swapped around that much, AA has been based in NCL since march, AC was swapped with AE about 5 weeks ago. AG showed up for a few days the other week after AC suffered a few problems in TFS.
So really only 4 or 5 swaps, im sure the likes of TOM, TCX or MYT have done more swaps than that as they tend to rotate aircraft quite often, current MYT unit is the 3rd or 4th reg ive seen up here since May