As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIVETS HAVE CORROSION ON CENTER SKIN IV INTERIOR SIDE FROM FR52 TO FR54 BETWEEN STGR 21L - 21R. REMOVED BAD RIVETS THAT HAVE CORROSION ON CENTER SKIN IV INTERIOR SIDE FROM FR52 TO FR54 BETWEEN STGR 21L-21R AND INSTALLED NUMEROUS RIVETS.