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 FULLY. PRESSURE GAUGE SHOWED FULL PRESSURE BEFORE DEPLOYMENT AND EMPTY AFTER BUT THE RAFT NEVER GO TO FULL SHAPE AND SIDES DID NOT FULLY INFLATE. WE WILL BE SENDING RAFT TO THEM FOR INVESTIGATION.