As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN DOING THE EMERGENCY LIGHT TEST WE FOUND THAT THE EXIT SIGN OVER THE MAIN ENTRANCE DOOR WILL NOT TURN ON. STARTED APU AND PLACED EMERGENCY LIGHT SWITCH IN ARM POSITION. ALLOWED 15 MINUTES FOR THE EMERGENCY LIGHTING BATTERY TO CHARGE. PERFORMED A SATISFACTORY OPS TEST OF THE EMERGENCY LIGHTS. ALLOWED EMERGENCY LIGHTING BATTERY TO CHARGE AN ADDITIONAL 30 MINUTES PRIOR TO AIRCRAFT SHUTDOWN. NO FURTHER DISCREPANCIES NOTED. WORK IAW AMM 33-51-00.