As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DURING THE EMERGENCY POWER SUPPLY UNIT OPERATIONAL TEST PER TASK CARD 26L00005005, MAINTENANCE FOUND LEFT ESCAPE SLIDE FAULT IN EMERGENCY POWER SUPPLY UNIT 13WL. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)