What was found
WHILE IN FOR D-CHECK, MAINTENANCE REPORTED FS 420-440, STR 9L, HAS CORROSION UNDER EDGE OF LAP AND FS 440, STR 8L-10L HAS CORROSION UNDER CIRCUMFERENTIAL JOINT ON FORWARD SIDE. REPAIRED PER SRM 51-30-2, 51-10-6, 51-20-4 AND DWG NR 69-62161.