What was found
DURING CLIMB AND CRUISE FLIGHT HEARD SEVERAL THUMPS/CLUNKS COMING FROM THE FRONT OF THE PLANE. DURING CLIMB AND DURING CRUISE FLIGHT, WE HEARD SEVERAL THUMPS/CLUNKS COMING FROM THE FRONT OF THE PLANE. CHECKED SERVICE (NITROGEN) SERVICE ON ALL STRUTS, ALL FOUND TO BE GOOD. CK'D NOSE STRUT MEASUREMENT 9.77", CK'D UPLOCK SWITCH AND WIRING, CK'D GOOD. CK'D WIRING FROM PCB BOARD TO UPLOCK SW. CK'D GOOD. C/W GEAR HUMP TROUBLESHOOTING PROCEDURES, NO DEFECTS NOTED. SERVICED NLG STRUT WITH HYD AND NITROGEN.