What was found
DISAGREE ON DESCENT & APPROACH AFTER SELECTING ALT FLAPS 20 TEF EICAS RESOLVED, TWO MORE APPROACHES FLOWN WITH NORMAL FLAP OPERATION. FOUND NO RELATED EICAS MESSAGES FOR THIS FAULT, PERFORMED A READOUT OF EXISTING FAULTS AT FSEU NR 1 & 2, NO FAULTS RECORDED. NO FAULTS IN FLIGHT HISTORY FOR LAST LEG AT FSEU NR 1 & 2. PERFOMED TRAILING EDGE SYSTEM TEST ACC AMM 27-51-00-715-001 REV117.0. CYCLED FLAP/SLAT SYSTEM, FOUND NO BINDING OF SYTEM, FLAP/SLAT OPS GOOD.