What was found
JAX - FLT 904 - APPROXIMATE V1 SPEED HEARD LOUD POP, THOUGHT IT MIGHT BE A TIRE. LEFT GEAR DOWN AND MADE A GO-AROUND. AFTER LANDING AND BACK AT THE GATE AFTER SHUTTING ENGINES DOWN, DISCOVERED DAMAGE TO NR 1 ENGINE 1ST AND 2ND STAGE FAN. UPON INVESTIGATION, FOUND NR 1 AND NR 2 ENGINES WITH FOD. FOUND TAXI LIGHT HOUSING AND BRACKET HAD SEPARATED FROM NOSE GEAR AND WAS INJECTED BY NR 1 AND NR 2 ENGINES. REPLACED BOTH NR 1 AND NR 2 ENGINES, TAXI LIGHT AND BRACKET ASSY, AND TAXI LIGHT HARNESS. INSPECTED NOSE GEAR AND AIRCRAFT FOR ANY FURTHER DAMAGE. NONE FOUND. AIRCRAFT TT, 35,682.89 HRS.