As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKE OVERHEAT WARNING ON CLIMB OUT, RETURN TO FIELD, EMERGEMCY DECLARED / PLACED #3 BRAKE TEMP READOUT ON DEFERRAL PER MEL 32-46-01 CAT C. C/W M FUNC BY INSTALLING DUST CAPS AND SECURING HARNESS. OPTION 4. REMOVED AND REPLACED #3 BRAKE TEMPERATURE PROBE IAW CRJ 900 AMM 32-46-01-000/400-801-A01-PSA OPS CHECK GOOD AT THIS TIME.