What was found
AFTER TAKEOFF, GEAR SELECTED UP, THREE GREEN LIGHTS OUT & RED UNLOCK LIGHT REMAINS ON. STAB INCOMPARABLE & HYD PRESSURE LIGHT REMAINED ON. AFTER APPROXIMATELY TWO MINUTES, FELT A THUMP, FROM THE NOSE, & UNLOCK LIGHT OUT FOLLOWED BY THE OTHER TWO. AT DESTINATION, GEAR & LIGHTS WORKED IN THE DOWN POSITION. JACKED ACFT & VERIFIED SQUAWK. WITH GEAR UP & UNLOCKED LIGHT ILLUMINATED PULLED GEAR CIRCUIT BREAKER & NOSE GEAR FALLING OUT OF WW. OPENED NOSE GEAR DOORS & COMPLIED WITH GEAR SWINGS. GEAR WENT UP & LOCKED EVERY TIME. INSPECTED GEAR DOORS & FOUND GEAR DOOR PUSH & PULL TUBE BINDING & ROD ENDS SEIZED & STIFF. R & R LT & RT NOSE GEAR DOOR CONTROL ROD. PERFORMED GEAR SWINGS WITH NO FAULTS FOUND. SERVICED MAIN HYD RESERVOIR. REMOVED ACFT FROM JACKS IAW MM 32-20-00.