What was found
DURING HEAVY MAINTENANCE, FOUND CORROSION, FWD CABIN, RT SEAT TRACK FRAME 12, RBL 9.5 -12.5 CORRODED AS MARKED. REMOVED CORROSION AT AREA A AND B. PERFORMED HFEC INSPECTION. NO FURTHER DAMAGE NOTED. TREATED, PRIMED AND TOP COATED REPAIRED AREA. REMOVED, FABRICATED AND REPLACED DOUBLER AT FRAME 16 IAW E13-686-03. THIS ITEM HAS BEEN CLASSIFIED AS A LEVEL 2 CORROSION.