As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MSG APPEARED AFTER SELECTING GEAR UP OUT OF CLT, REW REPORTED IT SOUNDED LIKE NOSE GEAR DID NOT RETRACT. DECLARED EMERGENCY AND RETURNED TO CLT. FOUND SENSOR PX08 TO BE NOT RIGGED. RIGGED PXO8 ON LT LVDT OPS AND GEAR SWINGS GOOD