As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING ABOVE ROW 25DEF AND 29DEF FLICKERED ON/OFF DURING FLIGHT. GROUNDED - YES. COULD NOT VERIFY FLICKERING. ALL INTERIOR EMERGENCY LTS STAY ON WHEN SELECTED ON FOR 15+MINS. NOTICED TEST SW ON M2627 EMERGENCY LIGHT BATTERY PACK FOR 25DEF AND 29DEF, SW IS BROKEN, SOME OF WHICH IS EMBEDDED IN UNIT. REMOVED AND REPLACED CHARGER M2627 IAW AMM 33-51-06-960-806. RE-INSTALLED ORIGIANL BATTERY. PASSES INSTALL TEST. NO OTHER DEFECTS NOTED.