It looks like it was GDFV that went tech in Glasgow yesterday afternoon.
The Titan A320 was sitting in Glasgow from 15:00 onwards, but this is where the Titan leased plane is not really a flexible resource.
Obviously the Jet2 flight crew due to go to TFS, wouldn't have been able to use the A320, however if there had been 6 Jet2 737-800 a/c based here, they could have utilised the a/c that had just come in from Faro.