As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN FOR RUDDER LIMIT FAULT STATUS MESSAGE WITH INTERMITTENT SPOILER/STAB FAULT MESSAGE AFTER WEIGHT OFF WHEELS. PER MOTR COMPLIED WITH CONTAMINATION REMOVAL OF PITOT STATIC SYSTEM PER CRJ900 AMM 34-11-00, COMPLIED WITH LEAK CHECK OF PITOT STATIC SYSTEM PER CRJ900 AMM 34-11-00, EVERYTHING CHECKED GOOD REMOVED AND REPLACED ISIS IAW AMM 34-12-01 AND PERFORMED PITOT STATIC LEAK CHECK NO LEAK OP/C GOOD.