B737 flight crew reported hearing loud bangs during takeoff roll. Flight crew rejected takeoff and the number 2 engine shut down on its own.
Synopsis
B737 flight crew reported hearing loud bangs during takeoff roll. Flight crew rejected takeoff and the number 2 engine shut down on its own.
Narrative
Taxied to runway XXL. Received clearance to line up and wait. Takeoff issued. F/O leg; power was advanced to 40 % and TOGA was pressed and announced. Thrust was increasing normally and my hand was over top of thrust levers. As I was about to announce Thrust set 92.2" I heard a serious of bangs and could see thru my purifiable vision engine instruments were abnormal. "Reject my aircraft" thrust levers were reduced. We did not go faster than 50 knots and aircraft remained on centerline. Stopped on the centerline I called for the QRC engine fire checklist. The EGT box was flashing red. Engine then shut itself down on its own. No fire was indicated but at first I thought so. Checklist started and we realized no fire so we called for the QRC engine failure checklist and ran it to completion. Tower was advised as we where stopped on the runway and equipment was requested. ARF (Airport Rescue and Firefighting) approached the aircraft and gave us the all clear. We single engine taxied back to the gate."
Second reporter narrative
On takeoff from XXL; I took control of the aircraft and announced TOGA then advanced the thrust levers. After the guarding of the thrust levers were transferred to the Captain and the take off roll was initiated; Captain announced reject; my aircraft" prior to power being announced set. I did not note the airspeed. We performed a transfer of controls and the rejected take off procedure. Simultaneously; the EGTs of number 2 engine flashed red and an aircraft vibration was felt. Captain called for engine fire checklist. Tower was advised as Captain made a PA then the appropriate QRC was performed; including securing the affected engine; until we saw there was no fire. Captain started the APU; transferred the buses to the APU; and communicated with the flight attendants further as the engine failure checklist was then performed. ARFF (Airport Rescue and Firefighting) inspected the aircraft and reported no smoke or fire. ARFF followed us to the gate as we taxied single engine. I performed the after landing flow to reconfigure the aircraft for parking. Flight attendants didn't report any injuries.Cause: Maintenance performance; staying proficient in the rejected takeoff maneuver and engine failure procedures."
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Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.