Regional Jet 900 (CRJ900)
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 105
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance
Aircraft Aircraft Damaged; Flight Crew Diverted; Flight Crew Landed in Emergency Condition; General Maintenance Action
Aircraft
Climbing out around 19;500 ft we heard a lot bang. About the same time got a 'Right Engine Flameout' caution. I selected altitude hold on the FCP (flight control panel) and had the FO notify ATC. I then called for the QRH. We discussed what immediate action items to complete and then FO continued with engine failure inflight and single engine procedures. I briefed the FAs and passengers. We returned via ILS XXL. After landing exited runway and had ARFF do a visual inspection of outside of aircraft then proceeded to park at gate.  Cause Unknown. All indications were normal until engine failed.
While climbing through 19;500 both the Captain and I heard a loud bang. I heard it come from the right side of the aircraft. We both immediately looked at the engine indications and I noticed the right engine rolling back as well as a right engine flameout message and all other associated messages that occur when an engine shuts down. Once that occurred the captain pressed ALT on the autopilot to hold the current altitude. We [advised] ATC and stated that we have a 'right engine failure'. During this time the engine was trying to relight but was unsuccessful. We went through the emergency checklist and while pulling the right throttle back to idle we noticed that the ITT spiked above 1;100 degrees; the ITT needle was pointed straight up and red. We continued on with the appropriate checklist (QRH) and proceeded back to ZZZ and made a safe landing where the ARFF circled our aircraft. Once they stated that they saw no visible damage we taxied to gate. The Captain handled flying the aircraft as well as talking to the flight attendants/passengers during this [situation] and I was handling the QRH. Once I was done with the checklists; I took over the radios while returning to ZZZ. We returned single engine with a flaps 20 landing. The Captain did an amazing job handling this [situation].Not sure why the engine failed. I would love [to know] when that information is determined.
CRJ-900 flight crew reported engine failure resulted in divert to emergency landing.