As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, LANDING GEAR LEVER WOULD NOT MOVE TO THE UP POSITION. THE CREW FLEW GEAR DOWN ON THE ENTIRE TRIP AND DID NOT USE DOWNLOCK BYPASS IAW QRH. NO AIRSPEED EXCEEDANCES NOTED. T/S IAW FIM 32-33-00, FOUND NLG STRUT UNDER SERVICED. SERVICED IAW AMM 12-12-09. R & R LANDING GEAR CONTROL LEVER IAW AMM 32-33-01. OPS FUNCTIONAL TEST NORMAL IAW AMM 32-33-01.