What was found
DURING INSPECTION, MAINTENANCE FOUND THE UPPER SKIN AT THE S-26L LAP JOINT CORRODED BETWEEN STA 700 AND STA 706. DAMAGE REMOVAL RESULTED IN A 3 INCH BY 6 INCH CUT OUT AREA OF THE UPPER SKIN. ALSO, THE 0.020 2024-T3 CLAD BONDED DOUBLER BETWEEN THE UPPER AND LOWER SKINS IN THE LAP, WAS REMOVED FROM APPROXIMATELY BS 680 TO 712 TO REMOVE CORROSION. IN ACCORDANCE WITH B727 SRM 53-30-3, FIG 14, A DOUBLER WAS INSTALLED, REF DL ERA 302842-14.