As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, INOP ELPU RT SIDE AT AFT GALLEY AREA; REPLACED EMERGENCY LIGHT POWER UNIT AS PER AMM 33-50-01-400-801-A AND PERFORMED OPERATIONAL TEST IS OK AS PER AMM 33-50-01-710-801-A AND OPERATIONAL TEST OF THE EMERGENCY LIGHT IS OK AS PER AMM 33-50-00-710-801-A LOC AFT GALLEY AREA REF NR WO 2018-9/1 WCC 2018-57298. SUPPLEMENTAL INFORMATION TO FOLLOW.