What was found
AFT CARGO DOOR THRESHOLD PLATE IS CORRODED. ACFT GROUNDED. BLENDED AWAY CORROSION AND REMOVED .008 IN OF MATERIAL IAW SRM 53-60-15-1A-1. ORIG THICKNESS .050 AND REMAINING MATERIAL .042 WHICH IS OUT OF LIMITS IAW SRM 53-60-15-1A-1, FIG 103 D. REMOVED DAMAGED THRESHOLD PLATE IAW SRM 51-40-02. RECEIVED NEW THRESHOLD AND LOCATED, DRILLED, DEBURRED, AND COUNTERSUNK FASTNER HOLES IAW BAC DWG 196A8340, REV-, SRM 51-40-05 AND SRM 51-40-08. APPLIED ALODINE AND PRIME TO AREAS OF BARE METAL IAW SRM 51-20-01. INSTALLED NUTPLATES ONTO NEW THRESHOLD PLATE AND INSTALLED THRESHOLD PLATE ONTO AFT CARGO DOOR, LWR SILL AS REQUIRED IAW SRM 51-40-02, PO 860072.1 DOT REMOVED.