What was found
25 MINUTES INTO FLIGHT LEVELING OFF AT 39000, HEARD & FELT A BUMP IN NOSE GEAR. FOLLOWED IMMEDIATELY BY NOSE GEAR INDICATOR GOING TO YELLOW CROSSHATCHINGS. FOLLOWED IMMEDIATELY BY A AMBER GEAR DISAGREE N EICAS INDICATION. COMPLIED WITH QRH & CONTINUED TO DESTINATION. DECENDING THROUGH 3000 FEET, INDICATION EXTINGUISHED. EXTENDED GEAR ON SCHEDULE WITH NO PROBLEMS & LANDED NORMALLY. FOUND NO DEFECTS, CW GEAR BUMP TROUBLESHOOTING IAW MM 32-00-00 & FOUND THE UP-LOCK SWITCH WAS OUT OF ADJUSTMENT. MEASUREMENT ON SWITCH PLUNGER SHOULD HAVE BEEN 0.15 INCH +/- 0.03 INCH & ACTUALLY MEASURED .07 INCH, R & R THE SWITCH IAW MM 32-32-10 OPS CHECKED GOOD.