As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELONGATED HOLES FOUND ON INTERCOSTAL SILL AT STGR 21L, FS333.00 TO FS349.00 UPON REMOVAL. REMOVED AND INSTALLED NEW INTERCOSTAL SILL AT STGR 21L, FS333.00 TO FS349.00 IAW SRM 51-42-06-001-001 A01 & DWG SH670-31810 REV AE. COMPLIED WITH TASK 51-900-1002-SKY.