What was found
AIRCRAFT IN BASE MAINTENANCE: L=2.216 INCH X W=0.862 INCH X D=0.050 INCH CORRODED AREA FOUND ON FLOOR BEAM AT -Y1291 AND FR20. REPLACED FLOOR BEAM - Y1292 FORWARD GALLEY AREA IAW A321 SRM 51-72-11-911-001, SRM 51-42-0-801-, DWG # D53135161.