As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION OF LT WING AFTER INCIDENCE OF STORM DAMAGE TO TIP BOW, FOUND HEAVY CORROSION TO BOTH SPARS. RT WING WAS THEN INSPECTED AND SPAR CORROSION WAS ALSO FOUND. LT WING CORROSION WAS ACCELERATED BY A LARGE BIRD NEST INSIDE. REPLACED SPARS WITH NEW.