As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH PF OPENED SPEED BRAKES. SPEEDBRAKES DID NOT DEPLOY. WITH ASSOCIATED GRND SPLR FAULT AND SPLR FAULT CAS MESSAGES. ACCOMPLISHED THE QRH PROCEEDURE AND RETURNED TO DEPARTURE AIRPORT. PERFORMED SPOILER OPS CHECK. OPS CHECK GOOD. IAW AMM 45-45-00