What was found
AIRCRAFT WAS NOT GROUNDED: FOUND EPSU EMER L UNIT FAULT WHILE TROUBLESHOOTING CABIN EMER LIGHTS OUT. REMOVED AND REPLACED EMER L EPSU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS NOT GROUNDED: FOUND EPSU EMER L UNIT FAULT WHILE TROUBLESHOOTING CABIN EMER LIGHTS OUT. REMOVED AND REPLACED EMER L EPSU.