As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PRE-D CHECK, FOUND EMERGENCY LIGHTS INOPERATIVE. SUSPECT EMERGENCY LIGHT SWITCH WAS ON OVERNIGHT WITH NO EXTERNAL POWER. REMOVED AND REPLACED EMERGENCY LIGHTING BATTERY AND RELAY UNIT RACK ASSEMBLY IAW DC8 AMM 33-50-01-2-0001. OPS CHECKED GOOD.