What was found
UPPER CARGO COMPT FLOORBEAM LWR FLANGE HAS CORROSION DAMAGE STA 902.000 LBL 52" (MAJOR REPAIR). PERFORMED MAJOR REPAIR IAW FAA FORM 8100-9 DATED 09-27-06, BOEING MESSAGE 1-230914076-2 (SEMAN DWG ED-4320) DATED 09-27-06. REMOVED RETAINER AND SPLICE ANGLES IAW SRM 51-1-20D, SRM 51-1-21, SRM 51-3-0. REMOVED CORROSION IAW SRM 51-1-8 PG 17-18. FOUND OUT OF LIMITS IAW SRM 53-2-0 PG 2P. CUT OUT CORRODED SECTION AND FABRICATED (2EA) SPLICE ANGLES FROM STEEL BAR 15-5PH OF 0.250", FILLER FROM 7075T6, SHIM TAPERED FROM AL7075T6 AND RETAINER FROM STEEL 17.7 PH FROM 0.050" IAW BOEING MSG 1-230914076-2 (SEMAN DWG ED-4320). HEAT TREATED SPLICE ANGLES FROM STEEL BAR 15-5 PHST TO 15.5PH-H900, RETAINER FROM 17.7PH-ST TO 17