As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIFE RAFT WAS REMOVED FROM THE AIRCRAFT TO BE USED FOR AN FAA TRAINING EVENT. WHEN THE CREWMEMBER PULLED THE HANDLE TO ACTIVATE PER INSTRUCTIONS, RAFT DID NOT INFLATE. PRESSURE GAUGE STILL SHOWED FULL PRESSURE. AFTER 45 MINUTES THE RAFT UNEXPECTEDLY DEPLOYED.