As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT EMERGENCY EXIT LIGHTS AND STANDBY ATTITUDE INDICATOR WERE FOUND INOPERATIVE. TROUBLESHOT SYSTEM, FOUND EMERGENCY LIGHTS NOT GETTING ENOUGH POWER FROM AC BATTERY. REPLACED AC BATTERY. SYSTEM OPS CHECKED GOOD IAW 33-50-0.