Regional Jet 700 ER/LR (CRJ700)
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor; Inflight Event / Encounter Fuel Issue
Flight Crew Inflight Shutdown; Flight Crew Landed in Emergency Condition; General Evacuated
Aircraft
Emergency landing (CA landing); after my visual approach; due to R ENG FIRE. At FL220; I (FO; Pilot Flying) identified apparent excessive fuel flow; a significant fuel flow differential; and continuous R AUTO FUEL CROSSFLOW status message shortly before being cleared to descend. CA then also noted the oil and fuel temps had significant differences from side to side. We briefly monitored fuel condition and engine indications; and the CA determined we did indeed have a fuel issue - fuel had rapidly decreased to below planned reserve fuel. We requested a straight-in approach due to potential fuel problem; and subsequently received vectors and descent. We completed the In-Range checklist; above and below the line; by approximately 9000 MSL. Then received R ENG FIRE warning approximately 7000 MSL; all indications had remained green until this point. CA ran the checklist for ENG FIRE In-Flight; [advised ATC] and notified flight attendants; while I continued to fly and talk to ATC as needed. The R ENG FIRE warning persisted after completing all steps of the ENG FIRE In-Flight checklist. We received clearance for a visual approach. I maintained 250 knots until we had to slow for landing configuration; we landed with Flaps 20. CA took the flight controls at 2500 MSL and approximately 6 miles from the runway. He safely landed the plane and we evacuated the aircraft on [the] runway; completing Passenger Evacuation checklist. Airport fire crew confirmed right engine fire and extinguished with foam. We accounted for all passengers and flight crew; there were no injuries reported from either. CA notified Dispatcher; Maintenance Control; and the Chief Pilot. Passengers and flight attendants were transported to the terminal via three airport buses. CA and I provided written statements to [appropriate personnel]. Once the aircraft was cleared for movement; operations/ramp personnel towed aircraft to the ramp; with the CA and I riding brakes. Operations and ground crews inventoried and removed passenger belongings from aircraft cabin; baggage was also removed from cargo compartments; and returned to terminal for passengers to claim.
During gradual descent into [destination] the FO (pilot flying) brought to my attention the fuel auto transfer was operating for an unusually long time. We then determined the right engine appeared to be consuming more fuel than the left. After recalculating; we realized the fuel situation was serious enough to advise approach we were in a minimum fuel situation. ATC issued a direct route to the airport and I requested a different runway to save time. While I was considering options to conserve fuel the fire bell sounded and a right engine fire warning message appeared. We executed the emergency procedures checklist items and shut down the engine but were not able to extinguish the fire. We [advised ATC] and landed where firefighters extinguished the fire. A passenger evacuation was conducted on the runway using the main cabin door. There were no injuries. The cause of the fire is not yet known.
CRJ-700 flight crew reported shutting down the engine inflight and evacuating on the runway after receiving an engine fire warning during the approach.