What was found
WHEN SELECTING FLAPS 2, RECEIVED A FLAP FAIL CAS. FLAPS STOPPED JUST BEYOND THE NR 1 POSITION. RAN QRH, & UNSUCCESSFUL WHEN CYCLING FLAPS. PERFORMED SEVERAL OPS CHKS FOR FLAP SYS USING AMM 27-50-00-710 & SYSTEM NEVER FAIL ON ANY STAGE OF OPS CHECKS. CHECKED OK. GAINED ACCESS THRU TO CMC VIEWER & NO ACTIVE FAULTS PRESENT, WENT THRU THE FAULT MESSAGES PER DAY ON JAN-17-26 & FOUND 743 I FCS FLAP LEVER DISAGREE FAULT CODE 27523800 FIM 27-53-00-810-818-A, RELATED CAS MESSAGE NONE CURRENT STATUS INACTIVE & 492 FCS FCE I, PWR DRIVE UNIT FAIL FAULT CODE 27522400 FIM 27-53-00-810-812-A RELATED CAS MESSAGE FLAP FAIL CURRENT STATUS INACTIVE. FOLLOWING THE T/S RECOMMENDATIONS FROM EMB SUPPORT: ISOLATION MANUAL 27-53-00-810-812-A THE FIRST STEPS REQUIRED TO VERIFY FAULT HAS BEEN REMOVED FROM ACTIVE FAULT AND NO FAULT PRESENT ON CMC PAGE. ALSO PERFORMED A VISUAL INSPECTION OF ALL FLAP MOTOR ACTUATORS AND LINKS WITH NO DEFECTS NOTED. MCC AGREE WITH T/S PERFORMED. PERFORMED ANOTHER SET.OF FLAP SYSTEM OPS CHECK IAW AMM 27-50-00-710 & SYSTEM WORK PROPERLY AT THIS TIME