What was found
AFT PIT STA 727C+10 TO 767 ;RBL21; Z-ANGLE HAS 18 SPOTS OF CORROSION ADJACENT TO FASTENER HOLES; MRK'D IN RED. WL 158. REMOVED CORROSION AT AFT PIT STA 727C+10 TO 767 RBL 21 Z ANGLE IAW B 737 SRM 51-10-02-0G-0 ITEM 15 ORIGINAL 'T' .040 REMAINING .029 LOSS .011 FOUND TO BE OUT OF LIMITS IAW B 737 SRM 53-00-53+-1A-2 FIG 103. FABRICATED REPAIR Z ANGLE AND SPLICE FROM BETWEEN STA 727F TO 727G TO 767 AND INSTALLED IAW B 737 SRM 53-00-53-1A-1 REPAIR 5 ITEM 4 A-N P/N 146A7502-52.