15th May 2004
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| Loco Used | 37419 |
Route: 1Z47 throughout
| Loco | Route |
| 37419 | Cardiff Central - Newport - Severn Tunnel Junction - Chepstow - Gloucester - Standish Jn - Yate - Westerleigh Jn - Bristol Parkway - Pilning - Severn Tunnel Junction - Newport - Cardiff Central |
Sources : various
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Timings (Booked & Actual)
| Location | Booked | Actual |
| Cardiff Central | 09.34d | 09.34 |
| Marshfield | 09/41½ | 09/41 |
| Newport | 09.46½a ~ 09.48½d | 09.48 ~ 09.50 |
| Severn Tunnel Junction | 10/04 | 10/01 |
| Chepstow | 10/11 | 10/08 |
| Lydney | 10/18 | 10/14 |
| Awre Jn | 10/23 | 10/20 |
| Gloucester | 10.39a ~ 10.42d | 10.33 ~ 10.40 |
| Standish Jn | 10/49 | 10/48 |
| Charfield | 10/58 | 10/59 |
| Yate | 11/05 | 11/03 |
| Westerleigh Jn | 11/07 | 11/07 |
| Bristol Parkway | 11.13a ~ 11.16d | 11.15 ~ 11.21 |
| Patchway | 11/18 | 11/23 |
| Pilning | 11/24 | 11/27 |
| Severn Tunnel Junction | 11.33a ~ 11.35d | 11.36 ~ 11.37 |
| Newport | 11.45a ~ 11.47d | 11.48 ~ 11.51 |
| Marshfield | 11/54 | 11/57 |
| Cardiff Central | 12.06a | 12.04 |