What was found
LEFT LOWER WING PLANK DRAIN VALVE ATTACH HOLE SHOWS DEFECT INDICATION AT WS 65.75, STRINGER 15. OVERSIZED SCREW HOLE TO REMOVE DEFECTS AND INSTALLED A FREEZE PLUG IAW EA 10-5721-02848.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT LOWER WING PLANK DRAIN VALVE ATTACH HOLE SHOWS DEFECT INDICATION AT WS 65.75, STRINGER 15. OVERSIZED SCREW HOLE TO REMOVE DEFECTS AND INSTALLED A FREEZE PLUG IAW EA 10-5721-02848.