As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE AFTER TAKE OFF. (FLT#5015) CLOSED LT MLG NOT UP AND LOCKED. CLEARED ALL ICE FROM GEAR AND INSPECTED ALL LANDING GEAR EXTENSION AND RETRACTION COMPONENTS, NO FAULT NOTED IAW FIM. PERFORMED LANDING GEAR RETRACTION AND EXTENSION CHECKS. OPS CHECK GOOD IAW AMM.