(18 Apr 2016, 12:40 am)Bus_User wrote Whats your souce for this out of interest? I ask because your list for the class 142's is certainly not big enough and 142034 is most definitely a Newton Heath unit. In general, I believe Heaton in the most part tends to get 142's ranging between 142015-142029(although I have never seen by either photos or with me own eyes 142028 ever in the North East so this could be a Newton Heath unit) and 142064-142068 have all been on Heaton diagrams.. 142001-142014 and 142030-142063(with the exception of 142050) tends to be based on North Western diagrams. The rest of your 142 list does seem correct though.
So basically ALL ex ATN 142's appear on North East diagrams whilst the poor folk in Manchester and other surrounding areas tend to get a lot more in way of bus seated pacers although some Heaton 142's can appear on North Western diagrams aswell as some Heaton 156's.
Your 156 list is more or less correct though apart from 156479 is a Heaton unit and 156481 I believe is also. 156482 seems to be on more North Eastern diagrams these days but the whole Northern unit allocations is rather complex. Also 142's can also be based at Neville Hill I believe aswell as any outside stabling depots.
UK Rail Guide book by Colin Marsden
(17 Apr 2016, 8:25 pm)South Tyne Lad wrote The Network Rail HST is based at Derby RTC
Ah, thought it was Heaton based