What was found
AIRCRAFT IN BASE MAINTENANCE. FOUND CORROSION ON SHEAR PLATE AT FR 69 TO FR 70 AND STR 23R IN AFT GALLEY AREA, MEASURING L=0.517 INCHES W=0.916 INCHES D=0.020 INCHES. REPLACED SHEAR PLATE, IAW SRM A321 51-72-11-911-001, 51-42-11-801 & DWG D53470100.