As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE GEAR RETRACTION NORMAL. WHEN HANDLE MOVED TO CENTER POSITION GEAR CAME DOWN ECAM READ "L/G RETRACTION FAULT" DOORS SHOWED RED UNLOCKED. PUT GEAR HANDLE DOWN GEAR SHOWED LOCKED. NO FURTHER ATTEMPT TO RAISE GEAR. MEM U IAW VERBAL FROM CAPT. GOT A L/G RETRACTION INOP MESSAGE NOT A L/G RETRATION FAULT MESSAGE. R & R LANDING GEAR SELECTOR VALVE (3GA) IAW AMM.