As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COMPLETION J/C NR 335003 (OPS TEST OF EMERGENCY LIGHTING SYSTEM) THE POWER SUPPLIES FAULTED IN POSITION 20LN (S/N 1319) AND 24LN (S/N 1412) USING TEST BOX P/N TES-4052081. REMOVED AND REPLACED 24LN POWER SUPPLY. P/N ON AND OFF 3301-51, S/N ON 2006, S/N OFF 1412. ALL CHECKS ARE GOOD. ALL IAW SF340 MM.