As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - BOTH MAIN LANDING GEAR DOORS CYCLED DURING CLIMB AND THEN APPROXIMATELY EVERY 6 MINUTES, PLUS MLG RED CAUTION LIGHT ILLUMINATED. FERRIED AIRCRAFT TO PDX FOR MAINTENANCE. PDX MAINTENANCE REMOVED AND REPLACED LEFT MAIN LANDING GEAR AFT DOOR MECHANISM, EXTENSION AND RETRACTION OPS CHECKS GOOD, AIRCRAFT RETURNED TO SERVICE.