What was found
ON WALK AROUND DAMAGE DISCOVERED AFT OF THE AFT CARGO DOOR. DAMAGE IS LOCATED AT BS 863-867 AND BETWEEN STR 20R - 21R. DAMAGE IS APPROX 8.5" X 7"REMOVED RIVETS IN THE STRINGER 20R AND 21R AND IN THE SHEAR TIES IN THE DAMAGED AREA FOR REPAIR PREFORMED CUT OUT OF DAMAGED SKIN PER SRM 53-00-01-2R-36 PAR 4.C AND VERIFIED SKIN AROUND CUTOUT IS BACK TO INITIAL CONTOUR. REQUEST HFEC FOR CUTOUT, COUNTERSINKS AND HOLE PROBES PER PAR 4.E.1-4.E.3 ACP B737 SRM 53-00-01-2R-36 STEP 4(E). IAW NTM PART 6-51-00-00 PROC. 23 , NTM PART 6-51-00-00 PROC. 16 AND NTM PART 6-53-30-00 PROC. 3 WITH NO DEFECTS. NEED TO VERIFY REPAIR MATERIALS IAW SRM 53-00-01-2R-36 TABLE 201 , VERIFIED REPAIR MATERIALS IAW SRM 53-00-01-2R-36, TABLE 201. LAYED OUT REPAIR FASTENER ROWS AND PILOT DRILLED ACFT IAW SRM 53-00-01-2R-36 CONTINUE FABRICATION OF ALL REPAIR PARTS, DRILLED & COUNTERSINK MOST HOLE, TRIM OUT DOUBLER & TRIPLE IAW SRM 53-00-01-2R-36. FABRICATED REPAIR PARTS IAW SRM 53-00-01-2R-36 STEPS H-M , ALSO REQUEST VERIFICATION OF CONICAL WASHERS INSTALLED PER STEP P . PERFORMED REQUIRED RII INSP & VERIFIED DRILL UP & FABRICATION IAW SRM 53-00-01-2R-36 STEPS H-M. OK TO ASKIN REPAIR COMPLETED REF SRM 53-00-01-2R-36.