As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A MAINTENANCE TEST DEPLOYMENT OF THE AIRCRAFT EVACUATION SLIDES NG (REGISTRATION NR 02-0201), IAW TASK CARD 25-220-00-01, THE SLIDE AT THE AFT ENTRY DOOR (L2) ONLY PARTIALLY DEPLOYED. FURTHER INVESTIGATION REVEALED THE FRANGIBLE SEQUENCE PIN FAILED TO DISENGAGE.