Thanks Dylan. Looks like whomever was here is returning home as we type.
Q)EGTT/QARCA/IV/NBO/E/050/190/5348N00152W009
B)05/11/01 16:15 UTC C)05/11/01 17:05 RAC (B2133/05)
E)AUS 05-11-0173/4824/AS6
TEMPORARY CONTROLLED AIRSPACE ESTABLISHED AS FOLLOWS
AIRWAY W2D FM LEEDS BRADFORD TO POL FL050/FL190 1615/1705. CONTROL
AUTHORITY LEEDS BRADFORD ATC/MACC
F)FL050 G)FL190
I guess this is one of the 'purple corridors' that we hear about but - for me - seldom see.