As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3359 EPSU 12WL FAULTING AFTER BATTERY REPLACEMENT. CORRECTIVE ACTION: EPSU SHOWING FLASHING FAULT OF INT AND EXT LIGHTS SHOWING OVERLOAD OR SHORT. T/S. SLIDE COVER REMOVED AT 1R ALONG WITH CEILING PANEL FOR EPSU. REMOVED THE DR 1R SLIDE ASSY. REMOVED AND REPLACED DOOR 1 RH SLIDE. SLIDE CK'S GOOD, ALL TEST PASS.