What was found
RT EMERGENCY POWER SUPPLY UNIT BATTERY PACK READS ZERO VOLTS. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PACK, OP CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RT EMERGENCY POWER SUPPLY UNIT BATTERY PACK READS ZERO VOLTS. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PACK, OP CHECKS GOOD.