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Last Checked or Updated
10 September 2026
D437 | 50037 Illustrious
Photo: K. Connolly - Newton Abbot 28/04/1979
Loco Specific
Allocations & Sectors
Liveries
Damage & Accidents
Photos
Loco Specific Information
Built By
English Electric at The Vulcan Foundry
Build Number
3807 / D1178
To British Rail / To Service
20.09.1968 / 21.09.1968
D437
TOPS Renumbered
15.02.1974
50037
Time In Service
22 years, 11 months, 21 days
8,390 days
Engine Hours
8,403
Nameplate
Illustrious
Fitted
08.06.1978
First Noted Working Found
Saturday
04 April 1970
1M37 xxxx Perth - Birmingham New Street
Viewed at Preston
Works History & Service Working (Before & After)
1 — Crewe Works (1968)
1
Before
Works
Acceptance
Entry xx.09.1968 / Release xx.09.1968
After
2 — Crewe Works (1971)
2
Before
Works
Light Repair
Entry 19.09.1971 / Release 31.10.1971
After
3 — Crewe Works (1974)
3
Before
Works
Intermediate
Entry Prior 11.08.1974 / Release Prior 24.11.1974
After
4 — Doncaster Works (1978/9)
4
Before
Works
Intermediate
Entry Prior 03.09.1978 / Release 24.02.1979
After
5 — Doncaster Works (1981/2)
5
Before
Works
Refurbishment
Entry 20.10.1981 / Release 06.04.1982
After
6 — Doncaster Works (1986)
6
Before
Works
Intermediate
Entry xx.xx.1986 / Release 15.10.1986
After
17.10.1986
1O40 0950 Swansea - Portsmouth Harbour between Swansea - Bristol Temple Meads
Last Passenger Duty (PD) / Last Working (LW)
PD
Monday
19 August 1991
1V09 08:40 Waterloo - Exeter St Davids
LW
Monday
19 August 1991
1V09 08:40 Waterloo - Exeter St Davids
Post Service
Withdrawn from Service
19.08.1991
Condemned (Withdrawn)
09.09.1991
Engine
Cut Up
05.12.1992
At
M C Metals, Springburn
Identification Markings & Notes
50 037 was the first to receive NSE Livery
Allocations / Sectors
Date
Area / Depot
Depot Code
Time Spent at Depot
xx.09.1968
Allocated to London Midland Stoke Division
D05
xx.05.1973
Allocated to Crewe Diesel
CD
11.05.1974
Reallocated to Bristol Bath Road
BR
08.05.1977
Reallocated to Laira
LA
04.10.1987
Reallocated to Old Oak Common
OC
03.1987
Reallocated to Laira
LA
10.1987
Reallocated to Old Oak Common
OC
05.1989
Reallocated to Laira
LA
Sector Code
Sector
05.1987
NXXA
Network SouthEast
30.09.1988
NWRA
Network SouthEast - Thames & Chiltern
14.05.1990
DCWA
Departmental - Western Region
27.05.1990
NWXA
Network SouthEast - West of England Reserve
Liveries
Earliest Noted
Latest Noted
Livery
Notes
20.09.1968
20.10.1981
Original BR Blue
00.04.1982
04.07.1984
BR Blue Large Logo Grey Roof
00.10.1986
07.08.1988
Original Network SouthEast
00.12.1989
03.11.1990
Revised Network SouthEast (Dark Blue)
03.02.1990
Laira Blue
Damage / Accidents
Photos
Standard British Rail Blue Unrefurbished
Nameplate
Photo: B. Daniels Worcester 27/05/1976