What was found
AIRCRAFT IN BASE MAINTENANCE. FOUND CORRODED AREA LOCATED AT CENTER FITTING ON LOWER SILL AFT LEFT SIDE MEASURING L=3.02 INCHES, W=0.579 INCH, D=0.090 INCH. REPLACED CENTER FITTING LOCATED AT LEVEL STRG 23L AND BETWEEN FR 66/FR 68 AFT GALLEY AREA, REF A321 SRM 51-72-11-911-001 AND DRAWING D53480084.