| Last Checked or Updated 24 August 2025 |
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D401 | 50001 |  |
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| Photo: K. Connolly - Newton Abbot 01/05/1978 |
| Loco Specific Information | ||||
| Built By | English Electric at The Vulcan Foundry | |||
| Build Number | EE 3772 / VF D1143 | |||
| To British Rail / To Service | 06.12.1967 / 09.12.1967 | D401 | ||
| TOPS Renumbered | Prior 24.02.1974 | 50001 | ||
| Time In Service | 23 years, 4 months, 10 days | 8,532 days | ||
| Engine Hours | 6,930 | |||
| Nameplate | Dreadnought | Fitted | 10.04.1978 | |
| First Noted Working Found | |||
| Thursday | 18th July 1968 | 1A45 1100 Windermere - London Euston | |
| Works & Exam History | ||||
| 1 | Acceptance ? | Entry xx.11.1967 / Release xx.xx.xxxx | ZC | Crewe Works |
| 2 | Light Repair | Entry Prior 27.06.1971 / Release 06.08.1971 | ZC | Crewe Works |
| 3 | Intermediate | Entry Prior 24.02.1974 / Release 02.04.1974 | ZC | Crewe Works |
| 4 | Refurbishment | Entry xx.xx.1979 / Release 30.04.1980 | ZF | Doncaster Works |
| 5 | Intermediate | Entry xx.xx.1984 / Release 01.08.1984 | ZF | Doncaster Works |
| 6 | Major F Exam | Entry xx.01.1988 / Release 24.01.1988 | LA | Laira Depot |
| Last noted working before and after a workd visit | |||
| 1 | |||
| 1 | |||
| 2 | |||
| 2 | |||
| 3 | Thursday | 01st November 1973 | 1A22 1515 Bristol Temple Meads - London Paddington |
| 3 | Tuesday | 16th April 1974 | 1B86 1545 London Paddington - Bristol Temple Meads |
| 4 | Saturday | 27th October 1979 | 1M85 0747 Penzance - Liverpool Lime Street between Penzance - Plymouth |
| 4 | Thursday | 01st May 1980 | 1V93 0950 Edinburgh Waverley - Plymouth between York - Plymouth |
| 5 | Thursday | 19th April 1984 | 2B20 1000 Paignton - Plymouth |
| 5 | Friday | 17th August 1984 | 1V62 2355 Glasgow Central - Bristol Temple Meads |
| 6 | Thursday | 31st December 1987 | 2C86 1545 Penzance - Plymouth |
| 6 | Monday | 25th January 1988 | 2C68 0702 Exeter St Davids - Penzance |
| Last Working | |||
| Wednesday | 10th April 1991 | 2V07 0745 Basingstoke - Exeter St Davids | |
| Post Service | |||
| Withdrawn | 10.04.1991 | ||
| Condemned | 19.04.1991 | Low Power | |
| Cut Up | 12.12.2002 | At | C.F. Booth of Rotherham |
| Identification Markings & Notes |
| Allocations / Sectors | |||
| Date | Area / Depot | Depot Code | Time Spent at Depot |
| 09.12.1967 | Allocated to Crewe Diesel | CD | |
| 08.07.1973 | Reallocated to Bristol Bath Road | BR | |
| 11.05.1974 | Reallocated to Old Oak Common | OC | |
| 10.04.1976 | Reallocated to Laira | LA | |
| Sector Code | Sector | ||
| 05.1987 | NXXA | Network SouthEast | |
| 30.09.1988 | NSSA | Network SouthEast - Solent & Sarum | |
| 20.05.1990 | NWXA | Network SouthEast - West Of England | |
| Liveries | ||
| Date From | Notes | |
| 09.12.1967 | Standard British Rail Blue | |
| 08.1984 | Large Logo British Rail Blue, Grey Roof | |
| 1987 | Network South East Revised, Light Blue | |
