What was found
PHL - FLT 1804 EN-ROUTE PHX TO PHL. FLAPS FAILED TO MOVE. TE LIGHT ON & EICAS MESSAGE TE FLAP DISAGREE DISPLAYED. FLAPS ALSO INOPERATIVE ON TE ALTN SYS. ACCOMPLISHED OPERATIONAL TEST OF THE TE EDGE FLAPS, COULD NOT DUPLICATE, INSPECTED FLAPS & NO FAULTS FOUND.