What was found
SJO - DURING C-CHECK, IN PASSENGER CABIN AFT LAVATORY AREA, BS 947, BETWEEN RBL 54 INCH AND LBL 54 INCH, FLOORBEAM WAS FOUND WITH CORROSION. REPAIRED FLOORBEAM UPPER CHORD AT BS 947, BETWEEN LBL 59 AND RBL 59 PER COOPESA EO COO-3-53-222-99, DATED APR 8, 1999. (M)