What was found
LOGBOOK ENTRY REQUIRED; LOGPAGE 0659842; REF LOGPAGE 0659841. AFTER REMOVAL OF CENTER THRESHOLD IN AFT CARGO PIT; FOUND CORROSION UNDER THRESHOLD AT THE FWD END OF UNDERLYING STRUCTURE. / BLENDED AND REMOVED CORROSION IN AFT CARGO PIT UNDER THRESHOLD (LOWER SILL WEB) ORIG 'T' .050' REMOVED .024' MATERIAL WITH .026' MATERIAL REMAINING OUT OF LIMITS IAW SRM 53-60-15-1A-1. RECEIVED NEW LOWER SILL WEB LOCATED AND DRILLED AND INSTALLED IAW DWG 146A8123 TAG:NB1021