What was found
AFT CARGO Z ANGLE CORRODED BS 727E TO BS 767 RBL 21. MARKED. / REMOVED CORROSION ON AFT PIT ZEE ANGLE RBL 21 STA 727E TO STA 767; FOUND MATERIAL LOSS TO BE OUT OF LIMITS; 100% MATERIAL LOSS ON FASTENER HOLE. REMOVED; FABRICATED AND INSTALLED NEW ZEE ANGLE RBL 21 STA 727C + 8' THRU STA 767. IAW B737 SRM 53-00-53-1A-2; SRM 51-40-02-0G-0; 53-00-53-2R-5 AND SRM 51-40-10-2R-0. TREATED; PRIMED AND APPLIED CIC TO APPLICABLE AREAS ON RBL 21 ZEE ANGLE AND SPLICE PLATE STA 727C + 8' THRU 767 STA IAW B737 AMM 51-21-41-370-803; AMM 51-21-72-370-804 AND AMM 51-21-91-620-802