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 A SCHEDULED REPLACEMENT OF THE L4 DOOR SLIDE, MAINTENANCE FOUND THE REPLACEMENT SLIDE WAS BAD FROM STOCK, ROUTED THE DEFECTIVE SLIDE TO BE SENT OUT FOR REPAIR AND RE-INSTALLED THE ORIGINAL SLIDE PER AMM 25-62-44.