As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING OPERATIONAL TEST OF EMERGENCY LIGHTS DURING THE PERIODIC SERVICE CHECK FOUND 1 OVERHEAD CABIN EMERGENCY LIGHT AT ROW 36 INOPERATIVE. REPLACED OVERHEAD LIGHT ASSEMBLY AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-51-11.