What was found
AFT CARGO COMPARTMENT BETWEEN STA 727E AND 727J +13' L/H Z ANGLE HAS SEVERAL AREAS OF CORROSION TO THE TOP SKIN SURFACE AS MARKED / REMOVED CORROSION FROM L/H Z ANGLE STA 727E TO 727J + 13". EVALUATED MATERIAL LOSS FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2. DEPTH = 0.007'. ORG 'T' = 0.040', REMAINING 'T' = 0.033'. TREATED AND PRIMED AREA IAW SRM 51-20-01 & AMM 51-21-72-370-804. REMOVED AND REPLACED LH Z ANGLE AT STA 727E TO 727J+13 IAW B737 SRM 51-40-02-0G-0 AND BOEING DWG 146A7500.