(22 May 2015, 9:43 pm)Malarkey wrote PVR is 7 for the X21, But isnt the whole reason 6084 was Transferred to Riverside and Repainted into Corporate Livery because it had a Tachograph, therefore the TTX already has a Spare and also prevented the usage of 6071 on the TTX also, while 3941/3963 and 3964 also have Tachographs and often appear on the TTX also if not required on the TEN.
But because of this (and very frequently), the TEN is still 1 short because of the PVR increase from 13 to 14 vehicles and 6084 being needed on the TTX due to traffic and frequent RTA's.