As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE A-HYDRAULIC SYSTEM QUANTITY WAS LOST WHEN GEAR WAS EXTENDED FOR LANDING ON APPROACH. CHECKLIST PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LT MLG DOOR RETRACT AND EXTEND ACTUATOR FAILED. THE ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-32-81, LEAK AND OPERATIONAL CHECKS WERE GOOD.