What was found
AIRCRAFT OUT OF SERVICE DUE TO C7 S2 CHECK. AFT CARGO COMPARTMENT DOOR SILL SUB FLOOR COVER PLATE CORRODED IN SPOTS FROM FR 58 TO FR 59. REMOVED SURFACE CORROSION FROM DOOR SILL COVER PLATE, ORIGINAL MATERIAL THICKNESS .080 INCHES, MEASURED MATERIAL LOSS IS .005 INCHES. BLEND OUT WITHIN LIMITS IAW SRM 51-73-00, PAR 5, APPLIED SURFACE PROTECTION.