As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RNO- FLIGHT 2441 - AIRCRAFT FAILED TO PRESSURIZE AFTER TAKEOFF IN EITHER AUTO OR MANUAL MODES. MORE THEN NORMAL NOISE FROM THE FORWARD BULKHEAD AREA. RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE REPLACED THE FORWARD SAFETY OUTFLOW VALVE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.