| LOCOMOTIVE NUMBER | | DEPOT | | | | DATES | |
| 40127 | | | | | | 02/01/79 - 21/01/80 | |
| | | | | | | | |
| | | DATE ON DEPOT | DATE OFF DEPOT | TOPS CODE | | RECORD OF MAINTENANCE REQUIREMENTS AND ATTENTION GIVEN | DEPOT |
| | | 02/01/79 | 03/01/79 | 120 | | Cylinder heads | SP |
| | | 28/01/79 | | BBL | | Brake blocks | LJ |
| | | 01/02/79 | 02/02/79 | XAM | | BX & oil change | SP |
| | | 13/02/79 | | 100 | | Repairs to engine | SP |
| | | 15/02/79 | | LOP | | Loss of power | CH |
| | | | 26/02/79 | | | AX | SP |
| | | 09/03/79 | 13/03/79 | XAM | | DX & oil change | SP |
| | | | 25/04/79 | | | AX | FP |
| | | | 30/04/79 | | | Speedo test carried out | KD |
| | | | 08/05/79 | | | AX | LO |
| | | 11/05/79 | 14/05/79 | XAM | | BX | SP |
| | | | 27/05/79 | | | AX | LO |
| | | | 05/06/79 | | | AX | SP |
| | | 25/06/79 | 27/06/79 | | | BX & 6A cylinder head liner leaking | KD |
| | | | 22/07/79 | | | AX | HD |
| | | 23/07/79 | | BBL | | Brake blocks | SY |
| | | 27/07/79 | | 612 | | Wheels tyres axles | LJ |
| | | | 21/08/79 | | | CX & No4 wheelset & traction motor changed | CD |
| | | | 27/08/79 | | | AX | HD |
| | | | 07/09/79 | | | AX | ? |
| | | | 16/09/79 | | | AX | BC |
| | | 09/10/79 | | WTR | | Tyre turning | CD |
| | | | 26/10/79 | | | BX & No 1 wheelset changed, flight valves changed | CD |
| | | | 17/11/79 | | | AX | NH |
| | | | 22/11/79 | | | No5 traction motor contactor changed | SP |
| | | | 27/11/79 | | | Brake blocks & AX | SP |
| | | | 08/12/79 | | | BX | SP |
| | | | 27/12/79 | | | AX | BS |
| | | 02/01/80 | | 160 | | Fuel system tanks and valves | CD |
| | | 11/01/80 | 14/01/80 | XAM | | CX & 4B fuel pump & coolant changed | SP |
| | | | 21/01/80 | | | AX | EG |
| | | 23/01/80 | | DRL | | Derailment | SP |
| | | 28/01/80 | | 690 | | Other body fittings | SP |