Regional Jet 200 ER/LR (CRJ200)
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural MEL / CDL; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; Flight Crew Rejected Takeoff
Aircraft; Human Factors; Procedure
Upon getting takeoff clearance from Runway 22; we taxied on to the runway. As the pilot flying I added power and called out 'Set power'. Before the airspeed came alive; the L HI PACK PRES caution message appeared. The Captain decided to pull the power back to idle and exit the runway to analyze the situation. Once we exited the runway; we quickly discovered the reason for the caution message was misconfigured bleeds. Since the RIGHT [air conditioning] pack had been deferred we were supposed to takeoff with BLEEDS CLOSED. I swapped the bleeds to the engine by mistake before takeoff and the caution message appeared.
When the flight crew of a CRJ-200 forgot to correctly position the bleed valves to comply with an MEL item they received a L HI PACK PRESS caution message as they advance power for takeoff. They rejected the takeoff; configured the valves correctly and completed the flight.