As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE MESSAGE ON GEAR RETRACTION. LEFT MAIN SLOW TO RETRACT. MESSAGE WAS ILLUMINATED ONLY FOR A FEW SECONDS. (FLT 7359) CLOSED REMOVED AND REPLACED LEFT MLG SIDESTAY ACTUATOR IAW AMM. SYSTEM OPS CHECKS GOOD NO FURTHER FAULTS NOTED.