As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED SHOP FLAT FIRING TEST, SLIDE TOP TUBE FAILED TO HOLD AIR. SLIDE/RAFT (P/N 62772-214), (S/N 0229). SLIDE WAS UNDERGOING FIRST SCHEDULED OVERHAUL. *S/D* TOP TUBE ASPIRATOR FLAPPER (CHECK) VALVE WAS FOUND DAMAGED. ASPIRATOR (P/N 62510-101), (S/N 1697) WAS REPLACED.