Originally Posted by billj770
I assume it is a cage, either way getting to it looks to be difficult.
If you can get to it, its easy to remove the impeller by opening casing on suction side (opposite side from motor drive. Sometimes a screen covers the opening or a large corugated hose. Remove hose and cover plate. The impeller could be bolted on the shaft or just spring clips.
If you can get it off, locate damge blade/blades. clean up edges where damaged. On exact opposite side of this rotor cut the same blades out cleanly using shears or Dremel cut off tool. This will put the impeller close to balance and will last until you ID and purchase new.
Most likely this is not a chassis supplied part but an HVAC vendor supply. FR can ID and supply or if you can find the A/C builder probably would be quicker.
Not knowing who built it can be aluminum alloy or plastic fan. Really not a big job.
Oh yes it may be the hub to shaft fit has failed,npt blades, also easy to fix with epoxy or shim depending on the failure.