As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT MAIN GEAR WILL NOT RETRACT. RED -A- AND -B- LIGHTS ILLUMINATED. RIGHT MAIN LANDING GEAR WILL NOT RETRACT, SHOWING A & B DISAGREEMENT LIGHTS. GEAR CAME UP AFTER SECOND CYCLING AND A SHORT DELAY. REPLACED RIGHT MAIN GEAR INBOARD FORWARD DOOR SEQUENCE VALVE DUE TO STICKING. OPS CHECKED GOOD DURING GEAR SWING. INSTALLED SERVICEABLE RIGHT MAIN GEAR ACTUATOR. OPS CHECK GOOD.