What was found
PREVIOUS REPAIR INSTALLED ON RT IB FLAP UPPER SURFACE RIB 17-19, NEEDS EVALUATION FOR MAJOR/MINOR CLASSIFICATION AND APPROVED REPAIR DATA. THE REPAIR AS NOTED CONFORMS TO SRM 57-52-12 FIG 204 WITH THE EXCEPTION OF FASTENER PITCH. LOCATED AND DRILLED FASTENER HOLE TO COMPLY WITH FASTENER PITCH PER A310-200 SRM 51-40-45. INSTALLED NEW FASTENERS MS20426 A4D IAW A310-200 SRM 51-40-21. NOW PREVIOUSLY INSTALLED REPAIR IS DETERMINE TO BE IAW A310-200 SRM 57-52-11 FIG 204 BASED ON EVALUATION OF LOCATION, SHAPE, SIZE, FASTENER SPACING/NUMBER, AND MATERIAL TYPE/THICKNESS. WORK DOCUMENTED ON NRC N00713.