As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - DURING MAINTENANCE CHECK, SEVERAL EMERGENCY EXIT LIGHT RECEIVERS WOULD NOT TEST PROPERLY. REPLACED RECEIVERS AT ROWS 14 AND 20, AND BATTERY AT ROW 18 AND AT THE R-1 DOOR. ALL EMERGENCY EXIT LIGHTS OPERATED NORMALLY. REF: OPER CNTRL NR 99ZZZX2833. (X)