As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS ON WHITE STATUS MESSAGE ON INTERMITTENTLY WITH ALL SWITCHES IN PROPER POSITIONS. 7 TIMES ON TAXI OUT AND TAXI BACK INTO GATE. F/A CONFIRMS LIGHTS WERE ACTUALLY ON WHILE MESSAGE WAS PRESENT. PERFORMED OPS TEST OF EMERGENCY EXT LIGHT IAW AMM 33-51-00. LIGHTS OPS CHECKED NORMAL AT THIS TIME NO FURTHER DEFECTS NOTED ACFT OK FOR SERVICE.