There was one technical service bulletin issued for the 2006 Blue Bird Express 4500.
| Bulletin Date: | May. 1, 2007 |
| Component: | Alternator/generator/regulator. |
| Bulletin Summary: | Coachworks express: on some model year coaches, the alternator mounting tabs and alternator mounting bolt torque cracking/breaking on both alternators. |
| Vehicles covered in this TSB: |
2003 Blue Bird Express 4000,
2004 Blue Bird Express 4000,
2004 Blue Bird Express 4500,
2006 Blue Bird Express 4500,
2007 Blue Bird Express 4500.
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