What was found
PDX: LT FUEL PANEL 523AT, MULTIPLE COUNTERSINKS HAVE LIGHT FRETTING CORROSION. MAINTENANCE REPAIRED IAW RD 8/4-57-432, NDTM PART 6, 51-00-07 AND HORIZON EO 6-57-317.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PDX: LT FUEL PANEL 523AT, MULTIPLE COUNTERSINKS HAVE LIGHT FRETTING CORROSION. MAINTENANCE REPAIRED IAW RD 8/4-57-432, NDTM PART 6, 51-00-07 AND HORIZON EO 6-57-317.