Flight Crew Multiengine; Flight Crew Commercial; Flight Crew Instrument
Troubleshooting; Time Pressure; Distraction; Situational Awareness; Workload
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport; Flight Crew Requested ATC Assistance / Clarification
Aircraft
First flight in the morning departing Runway XXR out of ZZZ. We have received a takeoff clearance direct ZZZZZ intersection. On the rollout all engine indication seemed normal as I was asked to 'set thrust'. As soon as we reached a positive rate and gear was in transition mode; we felt a bang associated with a slight shake. 3-5 seconds later we felt louder bangs and ZZZ tower notified us of 'sparks' coming out of our engine. I acknowledged the call and asked the tower to standby as the captain and I were analyzing the situation.The ITT on the right engine showed a high temperature momentarily; but as soon as the captain reduced the power on that engine; the ITT went back to the normal operating range.Leveling off at 3;000 feet; we decided to request priority and return to ZZZ by requesting radar vectors to the longer runway (XXR) anticipating a possible engine failure. Meanwhile we kept monitoring the engine gauges. Everything seemed to be normal and there were no indications of engine damage nor caution/ warning messages; however; we continued with caution to the field.The Captain contacted the flight attendants and they advised him about hearing and feeling the 'bangs' yet no smoke or fire was present in the cabin. The number one priority at the moment for us was to get back and land as soon as possible as we were not sure about the possible external or internal damages that those bangs might have caused. I contacted tower and made sure to have fire trucks waiting for us down the runway. Shortly after landing; we stopped at the runway and asked fire trucks to inspect the engines. There were no signs of damage so we continued to the gate.As of now we are not aware of the exact cause; but we're expecting it to be a mechanical malfunction.
Air Carrier First Officer (PNF) reported engine bangs and the right engine ITT momentarily going to a high reading. All occurred shortly after takeoff. The aircraft returned to the departure airport.