What was found
FUSELAGE INTERNAL STRUCTURE ,UNDER THE BULK CARGO FLOOR SUPPORT 48R HAS CORROSION FROM FRAME 66 TO FRAME 67. REMOVED CORROSION. TOTAL LOSS FOUND TO BE OUT OF LIMITS IAW SRM 53-17-14, PARA 1, PG 1. REMOVED AND REPLACED FLOOR SUPPORT SECTION AND SPLICE IAW SRM 51-40-21, PARA 6 & 7. ALODINED AND PRIMED IAW SRM 51-21-10. PAINTED IAW SRM 51-23-10. REMOVED AND REINSTALLED WEB IAW SRM 51-40-21. REMOVED AND REINSTALLED DUCTING IAW AMM 21-28-10.