What was found
LOST FLAP INDICATIONS ON EICAS AND RMU, USED MARKS ON FLAPS TO DETERMINE POSITION OF FLAPS UP TO 22, 22-45 NOT VISIBLE. REMOVED AND REPLACED FECU IAW AMM 27-53-02. OPS CHECKED GOOD. NR 2 R & R FECU IAW AMM 27-53-02. OPS CHECKED GOOD IAW AMM 27-53-00.