As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIC REPOPRTS THRUST REVERSER WOULD NOT STOW. CONTACTED BOMBARDIER MRT FOR OSR. DIRECTIONAL CONTROL UNIT CAUSING INTERMITTENT FAILURE. BOMBARDIER PERFORMEDD SIL AS907-6 AND RESTOWED AFTER REPLACEMENT OF DCU FOR RTS. UPON FURTHER INSPECTION NO DAMAGE WAS CAUSED TO AIRCRAFT AND NO INJURIES TO CREW OR PAX.