What was found
DURING LINE CHECK, FOUND L2 DOOR UPPER SURFACE OF THE LOWER MAIN SILL INNER CHORD BETWEEN BS 704-711, AT WL 208.10 WAS FOUND CORRODED. SECTION I OF ER/A 486856-14 ISSUED FOR CORROSION REPAIR AT L2 DOOR UPPER SURFACE OF LOWER MAIN SILL INNER CHORD BETWEEN BS 704-711. FOLLOW ON ACTION REQUIRED. ACCOMPLISH SECTION II, PERMANENT REPAIR THE SOONER OF 365 DAYS OR 3000 FLIGHT CYCLES. REMOVED AND REPLACED L-2 DOOR UPPER SURFACE OF THE LOWER MAIN SILL INNER CHORD BETWEEN BS 708-715 P/N 55-5300-3-4641 BATCH NR 0001 988114 IAW SRM 51-40-02 PG:21 FIG 4 COMPLIED WITH ERA 486856-14 REV.ORIG SECT 2 PERM REPAIR ACCOMPLISHED.