As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEPFF, THE CREW RECEIVED A GEAR DISAGREE MESSAGE. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO FIELD AND TAXIED TO THE UNDER THEIR OWN POWER WITH NO FURTHUR INCIDENT. MX FOUND THE LT MLG SENSOR PXO8 OUT OF RIG. RIGGED THE SENSOR. OPS CHECKED GOOD