What was found
DURING GEAR HANDLE RETRACTION AFTER TAKEOFF, PROXIMITY SYSTEM CAUTION MESSAGE AND PROXIMITY SYSTEM FAULT 2 STATUS MESSAGE. COMPLIED WITH QRH. R & R THE MLG SELECTOR VALVE IAW AMM, OPS CHECK GOOD. NO LEAKS NOTED. PN ON 53340-9, SN ON NGL/1451/05, PN OFF 53340-7, SN OFF NGL/1243/03.