As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FOR SI CHECK, MAINTENANCE FOUND CORROSION ON THE LOWER SEAL OF THE LEFT HAND AFT OVERWING EXIT HATCH. MAINTENANCE REMOVED THE LOWER AFT FRAME AND SEAL FORMERS, INSTALLED NEW FRAME AND SEAL FORMER. INSTALLATION IAW SRM 51-30-2, 53-30-01, AND 52-20-1.