What was found
DURING MAINTENANCE INSPECTION, FOUND THE RIGHT FLOOR SILL CORRODED BETWEEN FRAMES 39 AND 44. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED CORROSION REF SRM 51-10-03 NOMINAL .050 INCH REMAINING MATERIAL .032" OUT OF LIMITS OF SRM 53-23-10 FIGURE 101. REMOVED CORRODED SILL REF SRM 51-40-02, TRANSFERRED HOLES TO NEW SILL REF SRM 51-20-03 AND INSTALLED NEW SILL USING REF SRM 51-40-02. REMOVED FLOOR SILL FROM FR 36-41 REF SRM 51-410-02 LOCATED AND DRILLED NEW SILL USING REF SRM 51-20-03. THE AIRCRAFT WAS RETURNED TO SERVICE.