As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOW BOTTLE PRESSURE. ONE HOUR WATER BATH TEST SHOWED NO LEAKS. REPLACED BOTTLE AND VALVE WITH ANOTHER BOTTLE AND VALVE. CHANGED OUT ALL THE O-RINGS ON THE VALVE THAT CAME IN WITH THE SLIDE. NO EVIDENCE OF TORN O-RINGS. ROOT CAUSE OF FAILURE NOT ESTABLISHED.