What was found
ON APPROACH, LOWERING FLAPS TO 20, WE GOT TE FLAP DISAGREE LIGHT AND EICAS MESSAGE. RAN QRH, USED ALT FLAP SWITCH & LANDED. FLAP LEVER WAS CONFIRMED TO BE IN THE DETENT. INTERROGATED FLAP/SLAT ELEC UNITS #1, #2 & #3 IAW (FIM) 27-51 FAULT TREE 805. INTERROGATED FSEU #1. THERE WERE NO EXISTING FAULTS. FOUND #5 FLAP TANSMMISION TORQUE INDICATOR POPPED. REMOVED AND REPLACE SAME REF B757 MM 27-51-06-4. LEAK AND OPS CHECK GOOD. PERFORMMED EXTEND AND RETACK WITH NO FAULTS AND PERFORMED FLAP TRAMSMITTER CHECK ALL WITH IN LIMITS.