As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: WHILE PERFORMING OPERATIONAL TEST OF THE EMERGENCY LIGHTING SYSTEM PER JOB CARD 26/20025014. FORWARD LEFT AND MID RIGHT EMERGENCY POWER SUPPLY UNIT BATTERIES FAILED. REMOVED AND REPLACED FORWARD LEFT AND MID RIGHT (AALA202202148251) EMERGENCY POWER SUPPLY UNIT BATTERIES PER AMM 33-51-38. OPERATIONS TEST GOOD.