As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: WHILE ACCOMPLISHING ESCAPE SLIDE JOB CARD 26L20025014, LEFT CABIN POWER SUPPLY EMERGENCY UNIT FAILED TEST. REMOVED AND REPLACED LEFT CABIN EMERGENCY POWER SUPPLY UNIT OPERATIONS CHECK GOOD PER AMM 33-51-38-400-002-A.