As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: PREVIOUS REPAIR ON THE LEFT HAND AFT DOOR CUT OUT LOWER SILL WAS REMOVED AND A NEW SILL WAS INSTALLED. AS PART OF THE SILL REPLACEMENT THE UPPER INBOARD SPLICE WAS REPLACED AT FR 66 AND S23L PER SRM 51-72-11.