As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INOP EMERGENCY EXIT LIGHT M1559 POWER SUPPLY AT PASSENGER CABIN. REFER TO AEROMAN NON ROUTINE 2023-146216. REMOVED AND REPLACED POWER SUPPLY UNIT (M1559) AND PERFORMED OPERATIONAL TEST AND TEST IS OK. IAW AMM 33-51-07-002-006 AND AMM 33-51-07-402-010 BY V938999