Gulfstream V / G500 / G550
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Executed Go Around / Missed Approach; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
When landing gear was extended the nose gear did not show a green light. A go-around was made and aircraft was vectored away from the airport while crew accomplished checklists related to gear failure to extend. An emergency gear extension was performed; and nose gear still did not show green. Other indications that the nose gear was not down and locked were present; including a report by the control tower that the nose gear appeared to be down but not locked. [We advised ATC]; and aircraft was landed successfully. After landing the gear was pinned; and aircraft was towed to the FBO.
Gulfstream 550 Captain reported nose gear did not indicate down and locked; causing a go-around and a precautionary landing.