As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: RIGHT EMERGENCY EXIT LIGHT POWER SUPPLY UNIT FAILS B.I.T.E. TEST. REMOVED AND REPLACED EMERGENCY EXIT LIGHT EMERGENCY POWER SUPPLY UNIT (AALA202104189002) AND BATTERY (AALA202104199038) IAW AMM 33-51-38-0401.