1966 January

12 - Finsbury Park TMD. 0D01 Finsbury Park - Doncaster (towing D9014). To Doncaster Works - Unclassified repair. No.1 power unit 444 to be examined for water leaks - No.2 bogie 9000-26 had No.5 wheel set changed.
13 - Doncaster Works.
14 - Released from Doncaster Works.
26 - 1xxx Newton Abbott - Edinburgh "car carrier" (from). Haymarket TMD.

1966 February

7 - 1A58 19:30 King's Cross - Aberdeen, "The Aberdonian".
26 - 1E02 (07:00 Bradford - King's Cross, "The West Riding").
s27 - 1A18 11:00 King's Cross - Newcastle.

1966 March

9 - To Doncaster Works - Unclassified repair. Boiler defects - No.2 end secondary fan shaft was replaced and boiler 1495/J2951 had burst pipes repaired. Released from Doncaster Works.
19 - 1A39 09:30 Glasgow Queen St. - King's Cross.
21 - 1st EE maintenance contract expires - mileage recorded at 827,055.
24 - 0D01 (Finsbury Park) - Doncaster (towed by D5677). To Doncaster Works - Light repair. Power units No.1 444 intermittent faults & No.2 445 had failed - 444 & 445 given Unclassified repairs, bogies No.1 9000-25 replaced by 9000-31 and No.2 9000-26 replaced by 9000-32 and boiler 1495/J2951 given an Unclassified repair. The body was given an Unclassified repair, all radiators and a defective
exhaust silencer were replaced.
25 - Doncaster Works.
26 - Doncaster Works.
s27 - Doncaster Works.
28 - Doncaster Works.
29 - Doncaster Works.
30 - Released from Doncaster Works.

1966 April

8 - 1A16 10:00 King's Cross - Edinburgh, "The Flying Scotsman".
30 - 1N03 (07:45) King's Cross - Leeds. 1E10 12:50 Harrogate - King's Cross.

1966 May

5 - To Doncaster Works - Unclassified repair. Flat batteries - batteries were recharged. Released from Doncaster Works.
13 - 1A54 18:10 King’s Cross-Newcastle.
20 - 1A28 12:00 King's Cross - Aberdeen, to Edinburgh. Haymarket TMD. 1A75 19:15 Aberdeen - King's Cross, from Edinburgh.
28 - 1A31 11:00 Newcastle - King's Cross.
31 - To Doncaster Works - Unclassified repair. No shopping proposal - power units No.1 444 replaced by 417 & No.2 445 replaced by 430, No.1 lubricating oil radiators were changed as was No.2 primary gearbox.

1966 June

1 - Doncaster Works.
2 - Doncaster Works.
3 - Doncaster Works.
4 - Doncaster Works.
s5 - Released from Doncaster Works.
18 - 1N13 11:25 King's Cross - Harrogate, "White Rose".
1E14 Leeds - King's Cross.

1966 July

8 - To Doncaster Works - Unclassified repair. No.2 bogie 9000-32 suspension tube bearing to be examined - bogie fault attributed to No.4 axle not being greased, the axle was changed as was No.1 coolant fan.
9 - Doncaster Works.
s10 - Doncaster Works.
11 - Released from Doncaster Works.
12 - 1E03 (07:36 Bradford - King's Cross).
28 - 1A38 14:00 King's Cross - Edinburgh, "The Heart of Midlothian".

1966 August

1 - 1A47 14:00 Edinburgh - King's Cross, "The Heart of Midlothian".
2 - 1A16 10:00 King's Cross - Edinburgh, "The Flying Scotsman".
4 - 1A38 14:00 King's Cross - Edinburgh, "The Heart of Midlothian".
13 - 1A28 12:00 King's Cross - Edinburgh.
23 - 1A28 12:00 King's Cross - Edinburgh.
26 - 1xxx Newton Abbot-Edinburgh, "Car carrier" from York

1966 September

5 - 1A17 09:10 Newcastle - King's Cross, "The Tees-Tyne Pullman".
8 - 1A16 10:00 King's Cross - Edinburgh, "The Flying Scotsman".
14 - 1A23 08:00 Edinburgh - King's Cross, "The Talisman".
15 - 1A23 08:00 Edinburgh - King's Cross, "The Talisman".
21 - To Doncaster Works - Unclassified repair.
Defective axles - all axles ultrasonically tested and No.s 4,5 & 6 tyres turned.
22 - Doncaster Works.
23 - Released from Doncaster Works.

1966 October

28 - 1A35 10:00 Edinburgh - King's Cross, "The Flying Scotsman".

1966 November

1 - To Doncaster Works - Unclassified repair. No.2 power unit 430 exhaust silencer tank in roof split approximately 14 inches - unable to weld without preheating. Both exhaust silencers were replaced.
2 - Released from Doncaster Works.
29 - 0B01 (Doncaster) - King's Cross (towing D1530).

1966 December

8 - To Doncaster Works - General repair. No shopping proposal - power units No.1 417 replaced by 445 & No.2 430 replaced by 457, bogies No.1 9000-31 & No.2 9000-32 were given Unclassified repairs and boiler 1495/J2951 replaced by 4093 (this
appears to be a trial fitting of a boiler not fitted to any other Deltic - see 02.08.67). The body was was given a General repair which included repairs to bodywork behind No.2 right-hand door and the application of full yellow ends (this was not stated in the official works report).
9 - Doncaster Works.
10 - Doncaster Works.
s11 - Doncaster Works.
12 - Doncaster Works.
13 - Doncaster Works.
14 - Doncaster Works.
15 - Doncaster Works.
16 - Doncaster Works.
17 - Doncaster Works.
s18 - Doncaster Works.
19 - Doncaster Works.
20 - Doncaster Works.
21 - Doncaster Works.
22 - Doncaster Works.
23 - Doncaster Works.
24 - Doncaster Works.
s25 - Doncaster Works.
26 - Doncaster Works.
27 - Doncaster Works.
28 - Doncaster Works.
29 - Doncaster Works.
30 - Doncaster Works.
31 - Doncaster Works.