What was found
WHEN EXTENDING FLAPS FROM 15 DEGREES TO 20 DURING APPROACH, TRAILING EDGE LIGHT ILLUMINATED, AND THE TE FLAP DISAGREE EICAS MESSAGE APPEARED. DELARED EMERGENCY, COMPLIED WITH THE QRH AND LANDED. ARFF RESPONSED TO THE EMERGENCY. TROUBLESHOT IN REF TO FIM 27-51 FAULT TREE 805 FOUND FAULT CODE ON #1 FSEU CODE 305 ON FLIGHT LEG #9 CHECKED FLAP OVERLOAD INDICATORS FOUND LEFT OUTBOARD TRANSMISSION P/N # 25IN4022-34, S/N # 0053 OVERLOAD INDICATOR POPPED RE-SET INDICATOR CYCLED FLAPS IN BOTH ALTN AND WITH HYDRAULIC'S FLAPS OP'S CHECKED NORMALLY. OK FOR SERVICE.