| LOCOMOTIVE NUMBER | | DEPOT | | | | DATES | |
| 40087 | | | | | | 11/01/79 -17/01/80 | |
| | | | | | | | |
| | | DATE ON DEPOT | DATE OFF DEPOT | TOPS CODE | | RECORD OF MAINTENANCE REQUIREMENTS AND ATTENTION GIVEN | DEPOT |
| | | | 11/01/79 | | | AX | SP |
| | | | 20/01/79 | | | AX | NH |
| | | 30/01/79 | | 131 | | Exhaust system | CH |
| | | | 10/03/79 | | | AX. A bank camshaft section changed | SP |
| | | | 13/03/79 | | | AX | SP |
| | | 27/03/79 | | 616 | | Springs, hangers & dampers | CH |
| | | | 11/05/79 | | | AX | KM |
| | | 17/05/79 | 19/05/79 | XAM | | CX. Comp guv changed. No1&2 end Blower motor brushes changed | SP |
| | | | 28/05/79 | | | AX | CH |
| | | 01/06/79 | | 655 | | Windows | SP |
| | | | 05/06/79 | | | AX | NH |
| | | 08/06/79 | | 616 | | Springs, hangers & dampers | LO |
| | | | 25/06/79 | | | AX | SP |
| | | | 17/07/79 | | | A | LO |
| | | | 21/07/79 | | | AX | EG |
| | | | 29/07/79 | | | BX | SP |
| | | | 20/08/79 | | | AX | SP |
| | | 04/09/79 | 16/09/79 | XAM | | DX | RS |
| | | | 21/09/79 | LOP | | Loss of power. (ATR) Awaiting test run | KD |
| | | 17/10/79 | 17/10/79 | LOP | | Loss of power | KD |
| | | 18/10/79 | | LOP | | Loss of power | RS |
| | | 01/11/79 | 02/11/79 | | | BX | RS |
| | | | 28/11/79 | | | AX | BX |
| | | 03/01/80 | | 120 | | Cylinder heads | RS |
| | | | 17/01/80 | | | BX. Oil & filters changed. A2 Cylinder head damaged, Coolant changed | RS |