What was found
DURING CHECK-C MAINT INTERCOSTAL AT RBL 16 BETWEEN STA 1307 AND 1323, HAD CORROSION AT BOTH ENDS. REMOVED AND REPLACED INTERCOSTAL AT STA 1322, RBL 15. INSTALLED WITH HI-LOKS PER SRM 51-30-5, AND AD RIVETS PER SRM 51-30-2. INTERCOSTAL FABRICATED PER DAC DRAWING 5936667. TREATED PER SRM 51-30-3.