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| Operator: | United Automobile | Fleet No: | BU171 |
| Chassis: | Bristol LS5G | Chassis No: | 107.146 |
| Body: | ECW B45F | Body No: | 7689 |
| Mar 56 | In service with United Automobile Services Limited, Darlington (BU171) |
| Nov 64 | Fleet number changed to U171 |
| Jan 69 | Fleet number changed to 2171 |
| Out of service with United Automobile Services Limited, Darlington (2171) |