What was found
MAIN CABIN FLOOR STRUCTURE HAS CORROSION JUST INBD OF L-4 DOOR SILL, STA 1660 BEAM. FOUND CORROSION AT MAIN CABIN FLOORBEAM, BS 1660 WITH MATERIAL LOSS .022. OUT OF LIMITS IAW SRM 53-00-51, FIG 101. CUT OUT DAMAGE AREA DIM 26". FABRICATED "T" CHORD USING BAC1505-100880, PO 707TW-00185, DIM 30", 2 EA SPLICES FROM 7075 "O " .071 PO ST00003441, DIM 9.5" X 2.5" & 7075 "O" .063 P.O ST00003441 DIM 11.5" X 2.5", 2 EA STRAPS FROM 7070T6.071 PO ST00003441 DIM 9.5" X 1" AND 7075T6.063, PO ST00003441 DIM 11.5" X 1". HEAT TREATED PARTS FROM "O" CONDITION TO T6 IAW FORM FAS 0115, REV .012. REPAIRS PARTS MADE IAW SRM 53-00-51, REPAIR 8, FIG 201. INSTALLED REPAIR PARTS IAW SRM 53-00-51, REPAIR 8, FIG 201 INSTALLED ID TAG IAW PS 900-5-1, NR 04. LP1891073