As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: RIGHT HAND OVERWING EXIT SLIDE INFLATION RESERVOIR IS MISSING ORIFICE FITTING MPN M3SP-303-004E FROM UNION FITTING ATTACHED TO THE VALVE/REGULATOR. MAINTENANCE REPLACED RESERVOIR ASSMEBLY PER AMM 25-62-46 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.