Editing Standard Corridor (section)

==Conversions==
* In 1973-74 4 '''Second Corridor''' were converted to [[British Rail Class 309|Class 309]] '''TSK''' later become '''TSOL''' 
* In 1976, 9 '''Second Corridor''' were converted to '''Stowage Vans''' 80431-80439 '''POT'''
* In 1977, 15 '''Second Corridor''' were converted to '''Sorting Vans''' 80381-80395 '''POS'''.

{|class="wikitable"
! SK !! TSK !! Diagram !!
|-
| 26024 || 71110 || 469 || [[British Rail Class 309|Class 309]]
|-
| 26189 || 71108 || 469 || [[British Rail Class 309|Class 309]]
|-
| 26196 || 71109 || 469 || [[British Rail Class 309|Class 309]]
|-
| 26203 || 71107 || 469 || [[British Rail Class 309|Class 309]]
|}

{|class="wikitable"
! SK !! Type !!  !! Year !! Diagram 
|-
| 25033 || POS || 80383 || 1977 || 726A/NS531
|-
| 25045 || POS || 80387 || 1977 || 726A/NT531
|-
| 25047 || POS || 80390 || 1977 || 726A/NT531
|-
| 25056 || POS || 80395 || 1977 || 726A/NT531
|-
| 25068 || POT || 80437 || 1976 || 727A/NT521
|-
| 25071 || POT || 80432 || 1976 || 727A/NS521
|-
| 25077 || POT || 80436 || 1976 || 727A/NS521
|-
| 25078 || POS || 80384 || 1977 || 726A/NS531
|-
| 25082 || POS || 80392 || 1977 || 726A/NS531
|-
| 25083 || POS || 80385 || 1977 || 726A/NS531
|-
| 25088 || POS || 80388 || 1977 || 726A/NS531
|-
| 25089 || POS || 80391 || 1977 || 726A/NS531
|-
| 25099 || POS || 80386 || 1977 || 726A/NS531
|-
| 25103 || POS || 80389 || 1977 || 726A/NS531
|-
| 25104 || POT || 80431 || 1976 || 727A/NS521
|-
| 25109 || POS || 80382 || 1977 || 726A/NS531
|-
| 25112 || POS || 80381 || 1977 || 726A/NS531
|-
| 25117 || POT || 80435 || 1976 || 727A/NT521
|-
| 25119 || POS || 80393 || 1977 || 726A/NT531
|-
| 25127 || POT || 80439 || 1976 || 726A/NT521
|-
| 25434 || POT || 80434 || 1976 || 726A/NT521
|-
| 25139 || POT || 80438 || 1976 || 727A/NT521
|-
| 25150 || POT || 80433 || 1976 || 727A/NT521
|-
| 25156 || POS || 80394 || 1977 || 726A/NT531
|}

===Departmental use===

{|class="wikitable"
! colspan=4|Mk1
|-
! SK !! !! Departmental !! Notes
|-
| 24011 || || DB975415 || Match wagon for ballast cleaner
|-
| 24026 || || ADB977057 || Doncester works test train
|-
| 24035 || || ADB975439 || Crewe works test train
|-
| 24062 || || LDB975062 || CM&EE Electrification staff coach
|-
| 24067 || || LDB975064 || CM&EE Electrification staff coach
|-
| 24070 || || ADB975161 || BTU tool van
|-
| 24085 || || TDB977187 || Train crew training coach
|-
| 24119 || || ZDB975074 || Exhibition coach
|-
| 24134 || || LDB975065 || CM&EE Electrification staff coach
|-
| 24140 || || LDB975066 || CM&EE Electrification staff coach
|-
| 24147 || || ZDB975073 || Exhibition coach
|-
| 24154 || || ADB975263 || Overhead Line Maintenance Stores coach
|-
| 24157 || || ADB975162 || BUT Tool & Generator coach
|-
| 24168 || || LDB975067 || CM&EE Electrification staff coach
|-
| 24189 || || LDB975068 || CM&EE Electrification staff coach
|-
| 24274 || || ADB975801 || CCE staff & dormitory coach for ballast cleaner
|-
| 24308 || || DB975392 || Match wagon for ballast cleaner DR76216
|-
| 24320 || || LDB975069 || CM&EE Electrification staff coach
|-
| 24345 || || ADB975806 || CCE staff coach
|-
| 24410 || || LDB975070 || CM&EE Electrification staff coach
|-
| 24420 || || KDB975114 || S&T cable flat
|-
| 24428 || || ADB977058 || Doncester works test train
|-
| 24429 || || ADB975904 || Overhead Line Maintenance cable flat
|-
| 24430 || || TDB977188 || Train crew training coach
|-
| 24457 || || ADB975799 || CCE staff & dormitory coach for ballast cleaner
|-
| 24485 || || DB975412 || Match wagon for ballast cleaner
|-
| 24516 || || TDB977189 || Train crew training coach
|-
| 24531 || || ADB975726 || Overhead Line Maintenance generator & stores coach
|-
| 24579 || || ADB977090 || CCE staff coach
|-
| 24589 || || ADB975546 || Overhead Line Maintenance cable flat
|-
| 24647 || || TDB975135 || Lecture coach
|-
| 24677 || || TDB977247 || MOD special instruction coach
|-
| 24679 || || TDB977248 || MOD special instruction coach
|-
| 24685 || || TDB977422 || Special instruction coach
|-
| 24745 || || KDB975106 || S&T cable flat
|-
| 24752 || || ADB975440 || Crewe works test train
|-
| 24766 || || ADB975732 || Overhead Line Maintenance stores & roof access coach
|-
| 24796 || || ADB975802 || CCE staff & dormitory coach for ballast cleaner 
|-
| 24815 || || ADB975803 || CCE staff & dormitory coach for ballast cleaner  
|-
| 24841 || || TDB977497 || Special instruction coach
|-
| 24849 || || ADB975925 || Overhead Line Maintenance cable flat
|-
| 24857 || || TDB977498 || Special instruction coach
|-
| 24858 || || ADB977059 || Doncester works test train
|-
| 24870 || || ADB975441 || Crewe works test train
|-
| 24890 || || TDB977430 || Special instruction coach
|-
| 24899 || || CDB977103 || EMU barrier coach
|-
| 24936 || || ADB975442 || Crewe works test train
|-
| 24972 || || ADB975805 || CCE staff & dormitory coach for single line gantries 
|-
| 24976 || || DB975828 || Underframes used for CCE staff & dormitory portakabin
|-
| 24982 || || DB975379 || CCE staff & dormitory coach
|-
| 24990 || || ADB975926 || Overhead Line Maintenance cable flat
|-
| 24994 || || ADB975915 || Overhead Line Maintenance cable flat
|-
| 25003 || || ADB975913 || Overhead Line Maintenance cable flat
|-
| 25017 || || ADB975742 || Overhead Line Maintenance office & staff coach
|-
| 25025 || || ADB975920 || Overhead Line Maintenance cable flat
|-
| 25026 || || ADB975922 || Overhead Line Maintenance cable flat
|-
| 25038 || || ADB977320 || Crewe works diesel loco test train coach
|-
| 25069 || || ADB975924 || Overhead Line Maintenance cable flat
|-
| 25079 || || ADB975080 || BTU tool van 
|-
| 25094 || || ADB975908 || Overhead Line Maintenance cable flat
|-
| 25105 || || ADB975905 || Overhead Line Maintenance cable flat
|-
| 25106 || 18106 || ADB977322 || Crewe works diesel loco test train coach
|-
| 25122 || || ADB975443 || Crewe works test train
|-
| 25132 || || ADB975797 || CCE staff & dormitory coach for ballast cleaner  
|-
| 25161 || || ADB975906 || Overhead Line Maintenance cable flat
|-
| 25171 || || TDB977195 || MOD special instruction coach
|-
| 25190 || || ADB975736 || Overhead Line Maintenance stores & roof access coach
|-
| 25196 || || ADB975927 || Overhead Line Maintenance cable flat
|-
| 25205 || || ADB975930 || Overhead Line Maintenance cable flat
|-
| 25222 || || ADB975622 || EMU Barrier coach
|-
| 25226 || || ADB975722 || Overhead Line Maintenance generator & stores coach
|-
| 25236 || || CDB977102 || EMU barrier coach
|-
| 25238 || || ADB975923 || Overhead Line Maintenance cable flat
|-
| 25243 || || ADB975946 || Overhead Line Maintenance cable flat
|-
| 25262 || || ADB975712 || Overhead Line Maintenance stores coach
|-
| 25281 || || DB975816 || Underframes used for CCE staff & dormitory portakabin
|-
| 25286 || 18286 || TDB977496 || Special instruction coach
|-
| 25302 || || ADB975771 || Overhead Line Maintenance office & staff coach
|-
| 25318 || 18318 || ADB977323 || Crewe works diesel loco test train coach
|-
| 25326 || || ADB977319 || Crewe works diesel loco test train coach
|-
| 25329 || || DB975829 || Underframes used for CCE staff & dormitory portakabin
|-
| 25338 || || TDB977173 || Train crew training coach
|-
| 25339 || || ADB977151 || Crewe work test tain
|-
| 25340 || || ADB975903 || Overhead Line Maintenance cable flat 
|-
| 25343 || || ADB975798 || CCE staff & dormitory coach for ballast cleaner  
|-
| 25353 || || ADB975763 || Overhead Line Maintenance generator & stores coach
|-
| 25356 || 18356 || ADB977321 || Crewe works diesel loco test train coach
|-
| 25358 || || ADB975743 || Overhead Line Maintenance office & staff coach
|-
| 25388 || || ADB975723 || Overhead Line Maintenance generator & stores coach
|-
| 25396 || || TDB977174 || Train crew training coach
|-
| 25407 || 18407 || TDB977407 || MOD special instruction coach
|-
| 25412 || 18412 || TDB977584 || Special instruction coach
|-
| 25420 || || ADB975713 || Overhead Line Maintenance stores coach
|-
| 25422 || 18422 || TDB977499 || Special instruction coach
|-
| 25429 || || DB975817 || Underframes used for CCE staff & dormitory portakabin
|-
| 25430 || || ADB975758 || Overhead Line Maintenance stores coach
|-
| 25434 || || ADB975711 || Overhead Line Maintenance stores coach
|-
| 25437 || || ADB975762 || Overhead Line Maintenance generator & stores coach
|-
| 25440 || || ADB975744 || Overhead Line Maintenance office & staff coach
|-
| 25461 || || ADB975767 || Overhead Line Maintenance stores & roof access coach
|-
| 25466 || || ADB975714 || Overhead Line Maintenance stores coach
|-
| 25477 || || ADB975766 || Overhead Line Maintenance stores & roof access coach
|-
| 25479 || || ADB975738 || Overhead Line Maintenance stores & roof access coach
|-
| 25480 || || DB975825 || Underframes used for CCE staff & dormitory portakabin
|-
| 25493 || || DB975822 || Underframes used for CCE staff & dormitory portakabin
|-
| 25494 || || TDB977237 || MOD special instruction coach
|-
| 25495 || || ADB975759 || Overhead Line Maintenance stores coach
|-
| 25497 || || DB975830 || Underframes used for CCE staff & dormitory portakabin
|-
| 25498 || || ADB975947 || Overhead Line Maintenance cable flat
|-
| 25507 || || ADB975800 || CCE staff & dormitory coach for ballast cleaner  
|-
| 25567 || || TDB977129 || MOD Special instruction coaches
|-
| 25570 || 18570 || TDB977408 || MOD spechal instruction coach
|-
| 25600 || || ADB975721 || Overhead Line Maintenance generator & stores coach
|-
| 25602 || 18602 || DB977724 || CE staff & tool coach
|-
| 25623 || || CDB977100 || EMU barrier coach
|-
| 25664 || || ADB975741 || Overhead Line Maintenance office & staff coach
|-
| 25666 || || ADB975444 || Crewe works test train
|-
| 25667 || || DB975824 || Underframes used for CCE staff & dormitory portakabin
|-
| 25669 || || DB975821 || Underframes used for CCE staff & dormitory portakabin
|-
| 25695 || || ADB975734 || Overhead Line Maintenance stores & roof access coach
|-
| 25696 || || ADB975804 || CCE staff & dormitory coach for ballast cleaner 
|-
| 25699 || || DB975823 || Underframes used for CCE staff & dormitory portakabin
|-
| 25729 || 18729 || ADB977982 || Brake Force Runner
|-
| 25735 || 18735 || TDB977653 || Special instruction coach
|-
| 25755 || 18755 || TDB977419 || Special instruction coach
|-
| 25764 || || ADB975731 || Overhead Line Maintenance stores & roof access coach
|-
| 25807 || 18807 || TDB977420 || Special instruction coach
|-
| 25811 || 18811 || TDB977514 || Driver training coach
|-
| 25831 || 18831 || TDB977458 || Driver training coach
|-
| 25840 || 18840 || TDB977459 || Driver training coach
|-
| 25846 || 18846 || TDB977515 || Driver training coach
|-
| 25852 || 18852 || TDB977429 || Special instruction coach
|-
| 25859 || 18859 || TDB977428 || Special instruction coach
|-
| 25860 || 18860 || TDB977516 || Driver training coach
|-
| 25878 || 18878 || TDB977517 || Driver training coach
|-
| 25884 || 18884 || TDB977460 || Driver training coach
|-
| 25885 || 18885 || TDB977461 || Driver training coach
|-
| 25953 || || ADB975866 || EMU barrier coach 
|-
| 25973 || 18973 || TDB977462 || Driver training coach
|-
| 25985 || 18985 || TDB977463 || Driver training coach
|-
| 26002 || 19002 || TDB977464 || Driver training coach
|-
| 26010 || 19010 || TDB977465 || Driver training coach
|-
| 26020 || 19020 || TDB977512 || Driver training coach
|-
! colspan=4|Mk2a
|-
! FK !! SK !! Departmental !! Notes
|-
| 13458 || 19458 || RDB977914 || Test Train coach
|-
| 13462 || 19465 || 6352 || Mk4 Barrier coach
|-
| 13466 || 19466 || TDB977662 || MOD Special instruction coach
|-
! colspan=4|Mk2b
|-
! FK !! SK !! Departmental !! Notes
|-
| 13476 || 19476 || RDB977525 || Brake force runner
|-
| 13478 || 19478 || 6353 || Mk4 Barrier coach
|-
| 13481 || 19481 || RDB977530 || Brake force runner
|-
| 13484 || 19484 || RDB977528 || Brake force runner
|-
| 13485 || 19485 || TDB977663 || MOD Special instruction coach
|-
| 13487 || 19487 || RDB977529 || Brake force runner
|-
| 13491 || 19491 || TDB977661 || MOD Special instruction coach
|-
| 13501 || 19501 || TDB977656 || MOD Special instruction coach
|-
| 13505 || 19505 || TDB977654 || MOD Special instruction coach
|-
| 13511 || 19511 || TDB977660 || MOD Special instruction coach
|-
! colspan=4|Mk2c
|-
! FK !! SK !! Departmental !! Notes
|-
| 13518 || 19518 || TDB977659 || MOD Special instruction coach
|-
| 13531 || 19531 || TDB977658 || MOD Special instruction coach
|-
| 13557 || 19557 || TDB977655 || MOD Special instruction coach
|}