What was found
CORROSION ON AFT CABIN MID SECTION OF R4 DOOR THRESHOLD, FLOOR ATTACHING ANGLE SHIM, -Y2300 AND FRAME 73. REPLACED THE SHIM IAW SRM 51-74-00, SRM 51-73-11, AND SRM 51-42-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CORROSION ON AFT CABIN MID SECTION OF R4 DOOR THRESHOLD, FLOOR ATTACHING ANGLE SHIM, -Y2300 AND FRAME 73. REPLACED THE SHIM IAW SRM 51-74-00, SRM 51-73-11, AND SRM 51-42-11.