What was found
PDX - C4 CHECK, LOWER FLANGE ON LEFT INBOARD WING LEDING EDGE 511AL HAS FRETTING DAMAGE AT INBOARD 9" ON WING FACE. REPAIRED IAW SRM 51-20-16 AND RD 8-57-811.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX - C4 CHECK, LOWER FLANGE ON LEFT INBOARD WING LEDING EDGE 511AL HAS FRETTING DAMAGE AT INBOARD 9" ON WING FACE. REPAIRED IAW SRM 51-20-16 AND RD 8-57-811.