Last Checked or Updated
02 October 2025
50045
D446 | 50046
50047
50 046
Photo: K. Connolly - Birmingham New St. 29/05/1977
Loco Specific Information
 
Built By English Electric at The Vulcan Foundry    
Build Number 3816 / D1187    
To British Rail / To Service 29.10.1968 / 02.11.1968 D446  
TOPS Renumbered 15.02.1974 50046  
Time In Service 23 years, 4 months 8,521 days  
Engine Hours 7,889    
Nameplate Ajax Fitted 11.10.1978
 

 

First Noted Working Found
 
       
 

 

Works & Exam History
 
1 Light Repair Entry Prior 27.06.1971 / Release 21.08.1971 ZC Crewe Works
2 Light Repair Entry Prior 12.12.1971 / Release Prior 30.01.1972 ZC Crewe Works
3 Light Repair Entry Prior 11.06.1972 / Release Prior 06.08.1972 ZC Crewe Works
4 Intermediate Entry Prior 26.01.1975 / Release 18.03.1975 ZC Crewe Works
5 Light Repair Entry Prior 04.04.1976 / Release 28.06.1976 ZC Crewe Works
6 Light Repair Entry Prior 21.08.1977 / Release 28.12.1977 ZF Doncaster Works
7 Intermediate Entry xx.xx.xxxx / Release 16.04.1980 ZF Doncaster Works
8 Refurbishment Entry 04.11.1982 / Release 19.03.1983 ZF Doncaster Works
9 Mainframe Crack Repairs Entry xx.10.1986 / Release xx.11.1986 ZF Doncaster Works
10 Major F Exam Entry xx.xx.xxxx / Release 11.05.1987 LA Laira Depot
       

 

Last known working before and after a repair
1      
1      
2      
2      
3      
3      
4      
4      
5      
5      
6      
6      

 

Last Working
 
       
 

 

Post Service
 
Withdrawn 16.11.1991    
Condemned 25.03.1992    
Cut Up 19.06.1992 At M C Metals, Springburn
 

 

Identification Markings & Notes
 
 
 
 
 

Allocations / Sectors
 
Date Area / Depot Depot Code Time Spent at Depot
       
25.11.1968 Allocated to Crewe Diesel CD  
11.05.1974 Reallocated to Bristol Bath Road BR  
07.04.1977 Reallocated to Laira LA  
10.1988 Reallocated to Old Oak Common OC  
05.1989 Reallocated to Laira LA  
       
  Sector Code   Sector
       
05.1987 RXXA   Parcels
02.10.1988 NWRA   Network SouthEast - Thames & Chiltern
14.05.1989 DCWA   Departmental Western Region
13.01.1991 NWXA   Network SouthEast - West of England
       

Liveries
 
Date From   Notes
     
25.11.1968 Standard British Rail Blue  
03.1983 British Rail Blue Large Logo with Grey Roof  
04.1985 British Rail Blue Large Logo with Black Roof  
     
     
     
     
     

Damage / Accidents
   
28.10.1971 Class 50's 413 + 446 while heading the 18.00 1M40 Manchester - Glasgow collided with the rear of an up car carrier which was standing foul of the main
  line at Oxenholme. The front of 413 was extensively damaged.
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   

Photos
 
Standard British Rail Blue Nameplate
50 046  
Photo: B. Daniels Oxford 11/07/1979