As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, THE CREW REPORT THEY WHERE UNABLE TO EXTEND THE GEAR. THE CREW EXECUTED A MISSED APPROACH AND MANUALLY EXTENDED THE GEAR ACHIEVED 3 GREEN AND PROCEEDED TO LAND WITHOUT INCIDENT. THE AC WAS INSPECTED AND MECHANIC WAS UNABLE TO DUPLICATE THE PROBLEM. MECHANIC REPLACED THE GEAR SERVICE VALVE FOR TROUBLESHOOTING AND RETURNED AC TO SERVICE. (K)