What was found
SUPPORT TASK- MAIN CABIN FLOOR BEAM STA 947 AND LBL 51 HAS SIGNS OF CORROSION. REMOVED DAMAGE, ORIG .180 REF BAC DWG BAC1518-1212 REV-. MAT LOSS .020, REMAINING .160 FOUND TO BE OUT OF LIMITS REF B737- 800 SRM 53-70-51-1A-1.REMOVED DAMAGE TO FORM FLAT SURFACE, HFEC SURFACE AND HOLES, ROTO PEENED AREA, FABBED REPAIR PARTS. ALODINED, PRIMED AND INSTALLED REPAIR REF B737-800 SRM 53-70-51-2R-8 FIG 205. THIS IS A CAT 'A' REPAIR. NO FURTHER ACTION REQUIRED. SUPPORT TASK- MAIN CABIN FLOOR BEAM STA 947 AND LBL 51 HAS SIGNS OF CORROSION.