As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 9995. REAR MOST OVERHEAD CABIN EMERGENCY LIGHT NOT FUNCTIONING. REMOVED FROM SERVICE.REMOVED AND REPLACED THE #4 EMERGENCY LIGHT POWER UNIT. REF E175 AMM 33-50-01-000-801-A AND 33-50-01-400-801-A. OPS CHECK GOOD. NOTE; ALSO REPLACED THE AFT CABIN EMERGENCY LIGHT ASSY REF E175 AMM 33-50-13-000-802-A , 33-50-13-400-802-A. NO HELP. RETURNED TO SERVICE.