| NEW ENTRY | DATE | ENGINE | HEADCODE | TRAIN/LOCATION | NOTES |
|---|---|---|---|---|---|
| 09/04/1958 | D200 | Doncaster Works - Welwyn Garden City | 7 Coach test train | ||
| # | 11/04/1958 | D200 | Doncaster Works - Stratford Depot | Light engine | |
| # | 15/04/1958 | D200 | ? - Cambridge | Crew training runs, with stock or light engine ? | |
| # | 15/04/1958 | D200 | Cambridge - ? | Crew training runs, with stock or light engine ? | |
| # | 16/04/1958 | D200 | ? - Cambridge | Crew training runs, with stock or light engine ? | |
| # | 16/04/1958 | D200 | Cambridge - ? | Crew training runs, with stock or light engine ? | |
| 16/04/1958 | D201 | Doncaster Works - New England | Doncaster Works Test Train | ||
| 16/04/1958 | D201 | New England - Doncaster Works | Doncaster Works Test Train | ||
| # | 17/04/1958 | D200 | ? - Cambridge | Crew training runs, with stock or light engine ? | |
| # | 17/04/1958 | D200 | Cambridge - ? | Crew training runs, with stock or light engine ? | |
| # | 17/04/1958 | D201 | Doncaster Works - Stratford Depot | Light engine | |
| 18/04/1958 | D200 | 1??? | 1027 Liverpool Street - Norwich | First Revenue train of this loco,headboard "FIRST 2000hp DIESEL,LONDON - NORWICH PROGRESS BY GREAT EASTERN" | |
| 18/04/1958 | D200 | 1??? | 1455 Norwich - Liverpool Street | First Revenue train of this loco,headboard "FIRST 2000hp DIESEL,LONDON - NORWICH PROGRESS BY GREAT EASTERN" | |
| # | 18/04/1958 | D201 | Stratford Depot - Liverpool Street | Light engine | |
| 20/04/1958 | D201 | At Stratford Works | inside | ||
| # | 26/04/1958 | D201 | 0925 Wood Green - Grantham | Trail run | |
| # | 26/04/1958 | D201 | 1245 Grantham - Wood Green | Trail run | |
| # | 28/04/1958 | D201 | 0910 Wood Green - Royston | Trail run | |
| # | 28/04/1958 | D201 | Royston - Bounds Green | Trail run | |
| 29/04/1958 | D201 | Kings Cross - Sheffield | 6 Pullman coaches,time trials,ECS | ||
| 29/04/1958 | D201 | Sheffield - Kings Cross | 6 Pullman coaches,time trials,ECS | ||
| 30/04/1958 | D201 | At Doncaster Works | Coolant leaks | ||
| # | 30/04/1958 | D202 | Newton le Willows - Doncaster Works | Light engine, for acceptance trials |
