As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT #2736 THE WHITE BITE LIGHT, LH FIRE WARNING AND CONFIG WARNING LIGHT ON. AIR RETURN TO MEM. MAINTENANCE REPLACED WARNING ELECTRICAL UNIT. WEU OPS CHECK GOOD. PN 005WS00 SN/ON 1394 SN/OFF 1586. AC OK FOR SERVICE IAW 31-50-05-4.