As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR DISAGREE ON RETRACTION AFTER TAKEOFF. AIRCRAFT RETURNED TO ATL AFTER T/O. NOSE GEAR DISAGREE ON RETRACTION AFTER TAKEOFF. FLT 4954 DEL 102 MINS N/C=18R. REMOVED AND REPLACED OLEO CENTERED/ EXTENDED SUPPORT BRACKET ON NOSE LANDING GEAR SENSOR. OPS CHECK GOOD. IAW CRJ 200 32-61-05. RII SATISFACTORILY C/W SP 607