As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASPIRATORS, TOP & BOTTM LEAKING FROM THE FLAPPER VALVES. SLIDE/RAFT WAS REMOVED FROM AIRCRAFT AT NORMAL MAINTENANCE INTERVAL. ASPIRATOR FLAPPER VALVES WERE OBSERVED LEAKING DURING SLIDE/RAFT OVERHAUL AIR RETENTION TEST. SPECIFIC CAUSE OF LEAK WAS NOT DETERMINED. ASPIRATORS WERE REPLACED.