As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R1 EXTERIOR EMER LIGHT INOPERATIVE. DOES NOT ILLUMINATE. UPON TROUBLESHOOTING NOTED THE POWER SUPPLY HAS NO POWER. R & R THE BATTERY EMER POWER SUPPLY IAW AMM 33-51-07. OPERATIONAL CHECKED SATISFACTORY. NO FURTHER DEFAULTS NOTED. ACFT RELEASED TO SERVICE.