What was found
SUPPORT TASK- MAIN CABIN FLOOR BEAM HAS SIGNS OF CORROSION AT STA 986.5 AND RBL 43. REMOVED DAMAGE, ORIG .150 REF BAC DWG BAC1518-1211 REV-. MAT LOSS .055, REMAINING .095 FOUND TO BE OUT OF LIMITS REF B737- 800 SRM 53-70-51-1A-1 FIG 104 DETAIL C. CUTOUT DAMAGE, HFEC CUT AND OPEN HOLE, FABBED REPAIR PAIRS, ROTO PEENED AREA, LOCATED DRILLED, AND INSTALLED REPAIR PARTS AND NUT PLATE REF B737-800 SRM 53-70-51-2R-6 FIG 205. THIS IS A CAT 'A' REPAIR. NO FURTHER ACTION REQUIRED.