As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCOVERED WIRING HARNESS FOR HORIZONTAL STABILIZER MOUNTED POSITION/STROBE LIGHT ASSEMBLIES CHAFFED THROUGH INSULATION TO CONDUCTOR INSIDE THE STABILIZER. THE CHAFE DAMAGE WAS DISCOVERED WHILE REMOVING THE HARNESS. REPLACED ALL INTERNAL WIRING WITH NEW AND APPLIED CHAFE PROTECTION.