the new registrations for JET2 aircraft could be interpreted as meaning, Jet 2 Holidays (JZH).
Good Spot! Would never have thought it, but now you mention it, could not agree more.
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Tunisia hotel attack: Jet2 sends three planes to bring up to 1,200 UK passengers home - Mirror Online
With all that has been happening in Tunisia, Jet2 have sent 3 aircraft down to fetch passengers back up from NBE, with a fourth on standby.
G-LSAB is en route back to MAN currently as
EXS011X, whilst
G-LSAK is en route to NBE as
EXS014P.
As a result, we have seen various chartered aircraft operating from MAN at the moment:
Yesterday:
I-NEOS, B737-800 operated LS953/4 from MAN - PMI.
Today:
CS-TFT, B767-300ER is currently en route as LS781/2 from MAN-LPA.
Of course, the priority is to get people back home, and clearly Jet2 have exercised this, irrespective of the costs applicable to them. The 757 has its work cut out at the moment!