As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER DEPARTURE, RETRACTED GEAR AND RECEIVED A GEAR DISAGREE AURAL MESSAGE. ALSO NOTED NOSE GEAR WAS INDICATING GREEN, NOSE DOOR OPEN WITH GEAR HANDLE UP AND MAINS UP AND LOCKED. RETURNED TO DFW. FOUND NOSE GEAR EXTEND PROXIMITY SWITCH BRACKET BENT. REPOSITIONED BRACKET AND ADJUSTED PROXIMITY SWITCH TO .050". SWUNG GEAR IAW 32-30-00. OPS CHECK GOOD.