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| Operator: | United Automobile | Fleet No: | BU517 |
| Chassis: | Bristol MW5G | Chassis No: | 139.082 |
| Body: | ECW B45F | Body No: | 9832 |
| 1958 | United Automobile Services Limited, Darlington (BU517) |
| Mar 59 | In service with United Automobile Services Limited, Darlington (BU517) |
| Nov 64 | Fleet number changed to U517 |
| Feb/Dec 68 | Converted to OMO |
| Dec 70 | Repainted in Red Bus livery |
| Dec 70 | Fleet number changed to 2517 |
| <Mar 75 | Transferred to Darlington |
| <Aug 78 | Out of service with United Automobile Services Limited, Darlington (2517) |