As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF GEAR HANDLE PLACED IN UP POSITION GEAR DOORS CLOSED. HANDLE MOVED TO OFF AND GEAR DOORS OPENED. MOVED GEAR HANDLE BACK TO UP AND GEAR DOORS CLOSED. GEAR HANDLE STIFF FROM UP POSITION TO OFF. NORMAL OPS FROM OFF TO DOWN. REPLACED LANDING GEAR SELECTOR VALVE PER B757-A-32-31-02-401. JACKED AND CYCLED GEAR WITH HANDLE IN OFF POSITION. DOORS CHECK GOOD.