As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRE FLIGHT EMER LIGHT SWITCH IN ARM POSITION NO EMER LIGHTS, INTERIOR NOR EXTERIOR WILL ILLUMINATE. PERFORMED OPS CHK OF EMERGENCY BATTERIES & FOUND NR 1 & 4 BATTERIES DO NOT HOLD A FULL CHARGE. REMOVED NR I BATTERY & INSTALLED A REPAIRED BATTERY IAW AMM 33-50-06. REMOVED NR 4 BATTERY & INSTALLED A REPAIRED BATTERY IAW AMM 33-50-06. OPS CHKD IAW AMM 33-50-00 GOOD. NO FURTHER DEFECTS NOTED.