As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS IN FOR HEAVY CHECK *** MAINTENANCE REPORTED LEVEL 2 CORROSION ON THE RH SHEAR PANEL SPLICE PLATE AT FR88. MAINTENANCE REMOVED AND REPLACED THE RH SHEAR PANEL SPLICE PLATE AT FR88 IAW E170 SRM 51-42-02 & 51-40-02. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.