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