What was found
EWR - FLT 456 - AT CRUISE, GEAR DOOR OPEN LIGHT COMES ON PUMPS ON HIGH LIGHT GOES OUT. PRESS BLEEDS DOWN LIGHT COMES BACK ON. AFTER 20-30 MINUTES LIGHT GOES OUT. BITE TEST, NO MALFUNCTION ON THE GROUND CHECK AND CLEANED CANNON PLUG AND SENSOR FOR GEAR BOX. OK TO CONTINUE MM 32-60-04. (M)