What was found
FOUND DURING C-CHECK, CORROSION ON FLOORBOARD FLANGE ON PANEL 121AZ. LT SIDE BETWEEN STA 236.5 AND 258.0. REFER TO CELSIUS W/O 18955, TASKCARD 1550. MAINTENANCE REMOVED IB FLANGE TO REMOVE CORROSION IAW SRM51-70-40. IB FLANGE OUT OF LIMITS IAW SRM 51-10-10. FABRICATED PER SAMPLE NEW FLANGE IAW SRM 51-20-20. FABRICATED REPAIR ANGLE USING THE PRINCIPALS OF SRM 53-70-60. LOCATED, DRILLED AND TRIMMED DOUBLER, TREATED PRIMED AND TOPCOATED. SEALED AND INS TALLED REPAIR FLANGE AND FRAME IAW SRM 51-20-42/43. 51-40-21.