As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTS ALL BACK LIGHTING ON RIGHT HAND SIDE OF COCKPIT WILL NOT TURN ON. UPON FURTHER INSPECTION FOUND PILOTS SIDE PRINTED CIRCUIT BOARD WAS INOPERABLE. REPLACED PILOTS SIDE PRINTED CIRCUIT BOARD. OPERATIONS CHECKED GOOD AIRCRAFT OK FOR RETURN TO SERVICE.