What was found
CABIN STATION 1681, RBL 10 - 47, FLOORBEAM UPPER FLANGE FOUND CORROSION AFTER DECK PLATE REMOVAL. CABIN, STA 1681, RBL 10-47 FLOORBEAM UPPER FLANGE CORROSION REMOVED IAW SRM 51-10-02, REV 117. REWORKED AREA ORIGINAL THICKNESS 0.158" MATERIAL THICKNESS. REMAINING 0.119" AND MATERIAL THICKNESS REMOVED 0.039" FOUND EXCEED 10 PERCENT LIMIT IAW SRM 53-00-51-1A, REV 117. FLOORBEAM FABRICATED IAW SRM DWG 146N5111, SHT 1, REV B AND INSTALLED IAW DWG 146N5091, SHT II, REV-146N5300, SHT 23, REV K AND 146N8712, SHT 2, REV K. REPAIR CLASSIFIED AS MAJOR.