As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR HANDLE WILL NOT MOVE TO UP POSITION. PERFORMED CHECKLIST, GEAR WOULD NOT RETRACT. FOUND RT TRUCK BEAM ACT PRESS RELIEF VALVE AND ONE WAY RESTRICTOR FAILED. BOTH REPLACED IAW AMM 32-37-01 AND 04. ALSO REPLACED TWO-WAY RESTRICTOR AND TRIM ACTUATOR. SYSTEM BLEEDING AND LEAK CHECK PERFORMED. LANDING GEARS SWING TEST PERFORMED. ALL ARE OK.