As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED LINE MX EVENT, CORROSION WAS DISCOVERED WHILE ACCOMPLISHING OTHER MX ON A STIFFENER "C-CHANNEL" AT STA 312 OTBD AND AFT OF THE NLG TRUNNION LT SIDE. FABRICATED NEW STIFFENER FROM 7075-T76511 EXTRUSION AND REPLACED. ITEM WAS RETURNED TO SERVICE.