What was found
NLG DOOR: CRUISING AT FL410 THE NOSE GEAR LANDING UNLOCK LIGHT CAME ON FOR ABOUT 1 SECOND AND A LOUD AND ABRUPT CLOSING OR OPENING AND CLOSING OF THE NOSE GEAR DOORS OCCURRED. CORRECTIVE ACTION; COMPLIED WITH MULTIPLE GEAR SWINGS WITH NO ISSUES NOTED. COMPLIED WITH THE TS GUIDE FOR A BUMP AND ALL CHECKS GOOD. STRUT MEASUREMENT IS CORRECT, MANUAL RELEASE CABLE IS RIG PROPERLY. DURING GEAR SWINGS COMPLIED WITH MANUAL RELEASE WITH NO ISSUES. ALL WORK DONE PER 680 AMM 32-00-00. NO FURTHER MAINTENANCE REQUIRED AT THIS TIME.