As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW AIR RETURNED FOR MAINTENANCE ISSUE IN FLIGHT. ANTI-SKID CAUTION MESSAGE ILLUMINATED CREW DECIDED TO AIR RETURN TO CLT FOR MAINTENANCE. DEFERRED ANTI-SKID SYSTEM. SUPPLEMENTAL INFORMATION: PERFORMED TROUBLESHOOTING OF THE ANTI SKID SUBSYSTEM. INTERROGATED MDC AND FOUND B1-006066 "INBD SPINDOWN FAIL" FLT PHASE FAULT. NO OTHER PREVIOUS HISTORY. PERFORMED OPS CHECK OF THE ANTI SKID SUB SYSTEM IAW CRJ 700 AMM. OPS CHECK GOOD AT THIS TIME. THIS CLEARS MEL.