As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN PERFORMING EMERGENCY PWR TEST "EMER AC BUS OFF" DISPLAYED. REMOVED AND REPLACED EMERGENCY AC BUS SENSING AND EMERGENCY POWER RELAY PER 24-24-00 OPS CHK GOOD PER AMM 24-24-00. EMERGENCY POWER TEST FAILED AC EMERGENCY BUS NOT POWERED. REMOVE AND REPLACE EMERGENCY INVERTER PER AMM 24-24-01-400-801. OPS CHK GOOD. OK FOR SERVICE. OFF: PN: 1-002-0102-0752 SN: GD000196 ON: PN: 1-002-0102-0752 SN: GD000242.