As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT GEAR DISAGREE MESSAGE AFTER TAKE OFF. RAN QRH PROCEDURE AND LANDED WITHOUT ISSUE WITH 3 GREEN INDICATED. ACFT RETURNED TO DEPARTURE, EMERGENCY DECLARED. ADJUSTED PROXIMITY SENSOR. PS11GA (PS7GA) AND TARGET ON UPLOCK LATCH IAW AMM 32-32-05. OPS CHECKED GOOD.