As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C-19 CHECK A PREVIOUS REPAIR ON LOWER SURFACE OF RT AILERON WAS FOUND DELAMINATED AT WBL 480.5. MAINTENANCE REMOVED EXISTING REPAIR ON LOWER SURFACE OF RT AILERON AT WBL 480.5; CLEANED AND PREPARED AREA; FABRICATED NEW REPAIR PLIES; BONDED REPAIR PLIES TO AILERON IAW B737-300 SRM 51-70-04 FIG 14.