As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, HAD RIGHT PACK OVERTEMP MESSAGE AND SMOKE FROM AIR CONDITIONING VENTS. TURNED RIGHT PACK OFF AND SMOKE CLEARED. REMOVED AND REPLACED RAM AIR CHECK VALVE. INSPECTED RIGHT PACK, FOUND BLOWN GASKET ON PLATE ABOVE OIL SIGHT GAUGE, REF 148439/4. (M)