What was found
FWD CARGO PIT FLOOR STA 742 BEAM LBL 23 IN BOTTOM AFT SIDE TOP FLANGE HAS 3 SQUARE IN OF EXFOLIATED CORROSION. REMOVED CORROSION ON BOTTOM SIDE OF FLANGE 'J' CHANNEL AT STA 742 LBL 23 IN AN AREA 6.5"X1", IAW B767 SRM 51-10-02. ORIGINAL MATERIAL 100, REMAINING .038, LOSS .062 OUT OF LIMITS, IAW B767 SRM 53-00-07-1A-1 FIG 101 DETAIL VIII ASSET NR 0011938 CAL DUE 21APR21. REMOVED 'J' CHANNEL AND REPLACED P/N 1506-3121 7075-T6511 P/O FS20075 63, IAW B767 SRM 51-40-02.