What was found
CREW REPORTED DURING DEPARTURE, BETWEEN 80KTS AND V1., ACFT FELT SLIGHT YAW MOVEMENT TO THE SIDES. AT THE SAME TIME THE F/O CALLED FOR AN ABORT DUE TO LT ENGINE POWER LOSS. CREW INITIATED ABORT PROCEDURES. COMPLETED ENGINE SHUTDOWN PROCEDURES. INFORMED OF SPARKS FROM NR 1 ENGINE DURING TAKEOFF. F/A REPORTED A LOUD BANG, POSSIBLY TWO DURING TAKEOFF ROLL. ACFT REMOVED FROM SERVICE. COMPLIED WITH 002-05-900-013. HIGH ENERGY STOP/RTO DAMAGE GENERAL VISUAL INSPECTION. NO DEFECTS. THE ACFT WAS RETURNED TO SERVICE.