As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING MTC 78233008-EMERGENCY EXIT LIGHTS OPS TEST- FOUND TWO OVERHEAD BIN EMERGENCY LIGHTS INOP ON R/H SIDE ABOVE ROWS 25DEF AND 29 DEF. BOTH LIGHTS TURN ON AND BLINK SHORTLY BEFORE TURNING OFF. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY BATTERY PACK FOR EMERGENCY LIGHTS LOCATED ABOVE OVERHEAD BINS 25DEF AND 29DEF PER AMM 33-51-06-960-805. OPS CHECK GOOD.