(22 Jul 2014, 6:19 pm)Kuyoyo wrote 7436-44 will be withdrawn next year from Durham (7436-40 due to transfer to Durham), the B7TLs won't be withdrawn for a good number of years (given they are 51 and 02 reg which only makes them 12 years old). 4501/2/5/6/8/9 are due to move to Stockton at some point from Ashington however plans as always are subject to change and their move might be delayed.
Y reg is only between a day and a year older than 51 reg so can't see there being a 'good number of years' difference in their withdrawals.