As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON PREVIOUS REWORKS IN LH WING UPPER SKIN AT PANEL NO. 1 BETWEEN WS616.2 (RIB 17) AT STRINGER U-12.5. NOTE: INTERGRANULAR CORROSION WAS DETECTED(<P>TRIMOUT ON LH WING UPPER SKIN WAS DONE TO REMOVE THE INTERGRANULAR CORROSION</P> / <P>AND DOUBLER REPAIR WAS INSTALLED</P>)