As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT HAD HYDRAULIC LEAK THAT WAS VERY MINOR. NUMEROUS ATTEMPTS MADE TO LOCATE THE SOURCE OF THE LEAK. THE LEAK WAS TRACED TO THE LANDING GEAR SELECTOR VALVE. UPON REMOVAL OF THE VALVE, A .75 INCH LONG CRACK WAS FOUND ON THE UPPER AFT SECTION OF THE VALVE ON THE RETURN SIDE. VALVE IS LOCATED ON THE WING STRUCTURE JUST AFT OF THE MAIN GEAR WHEEL WELLS.