As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT LOWER WING PLANK FUEL TANK ACCESS HOLE AT 540BB HAS CORROSION IN CRITICAL AND NON-CRITICAL AREAS. (C-CHECK RO 6/11/2021) REMOVED CORROSION BY BLENDING IAW REO# 601R-57-21-030 REV-L DATED 2014-02-05. COMPLETED TASK CARD 51-900-1003-SKY AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE.