What was found
FLT 504 ORD-PHX - EEL - EMERGENCY EXIT SIGNS OVER 1L AND 1R DO NOT ILLUMINATE IN THE ARMED POSITION. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONAL CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 504 ORD-PHX - EEL - EMERGENCY EXIT SIGNS OVER 1L AND 1R DO NOT ILLUMINATE IN THE ARMED POSITION. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT AND BATTERY. OPERATIONAL CHECK GOOD.