What was found
PREVIOUS STRINGER REPAIR LOCATED IN AFT CABIN UNDER FLOOR BEHIND BULK CARGO ON STRINGER 39 LT BETWEEN FRAMES 73 TO 74, HAS 1 EACH REPAIR ANGLE SPLICE 12.6" LONG WITH A STRINGER CUTOUT OF 4.4" LONG. PREVIOUSLY INSTALLED REPAIR LOCATED AT AFT CABIN UNDERFLOOR BEHIND BULK CARGO ON STRINGER 39 LT BETWEEN FRAMES 73 TO 74 WAS DETERMINED NOT TO BE IAW SRM 53-10-14, FIG 201, PAGES 203 TO 206. DUE TO INCORRECT MATERIAL THICKNESS OF REPAIR ANGLE BASED ON A VISUAL EVALUATION WITH REPAIR INSTALLED. REMOVED EXISTING REPAIR SPLICE AND REPAIRED A NEW REPAIR AND INSTALLED IAW SRM 53-10-14, FIG 201, PAGES 203 TO 206.