As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED PSU LIGHT AT 6D SMOKING AND FLICKERING COULD NOT TURN OFF. MAINTENANCE R & R 6D PSU LIGHT WITH NO FIX. DISCONNECTED SWITCH AND PLACED ON NEF CB02. MX R & R 6D PSU LIGHT SWITCH WITH OPS CHECK GOOD. ACFT WAS APPROVED FOR RETURN TO SERVICE.