Fuel Imbalance Event
I found this incident interesting. I know the effects of an imbalance can vary from aircraft to aircraft with potential serious consequences for some. I was wondering if the procedure followed here was something in the checklist or an outside of the checklist action that may very well have become necessary.
"a CL-600-2D24 (CRJ 900 series) operated by xxx, was operating flight xxx from AAA to BBB. On departure out from AAA, the crew observed a crossflow caution message and a fuel quantity imbalance that could not be controlled. The fuel imbalance was substantial enough that the crew elected to shut down the right engine. The crew requested a clearance to return to AAA where they carried out an uneventful landing. A subsequent inspection by the operator's maintenance revealed a failed cross-flow pump."