As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE, DONT PASS OPERATIONAL TEST EPSU-EMERGENCY POWER SUPPLY UNIT 10WL AT FWD GALLEY AREA. PERFORMED FAULT CONFIRMATION AND FAULT INSOLATION OF EPSU EXTERNAL LOAD FAULT IAW TOM 33-51-00-810-808. R&R ESCAPE SLIDE RAFT ON DOOR 831 IAW AMM 25.