What was found
AFT CARGO COMPARTMENT BETWEEN STA 767 AND 727B RBL 20 WL 155.3 R/H ZEE ANGLE IS CORRODED IN SEVERAL AREAS TOP AND BOTTOM SKIN SURFACES AS MARKED / REMOVED CORROSION FROM AFT CARGO COMPARTMENT R/H ZEE ANGLE BETWEEN STA 767 AND STA 727B IAW B737-800 SRM 51.10.02.0G.0 PAR. 15. INSPECTED WITH 10X MAG GLASS NO DEFECTS NOTED. VERIFIED MATERIAL LOSS: ORIGINAL T = .040' REMAINING T = .031' LOSS = .009' LIMIT = .009' FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53.00.53.1A.2. REMOVED AND REPLACED AFT CARGO COMPARTMENT R/H ZEE ANGLE BETWEEN STA 727 AND STA 767 IAW B737-800 SRM 51.40.02.0G.0 AND B737 DWG 146A7500 REV-. APPLIED CIC TO R/H ZEE ANGLE IAW B737-800 AMM 51.21.91.620.802MPN: 146A7502-52