Gulfstream IV / G350 / G450
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 66; Flight Crew Total 7600; Flight Crew Type 3600
Troubleshooting
Aircraft Equipment Problem Critical
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; Flight Crew Overcame Equipment Problem; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Diverted; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
The aircraft was slowing from 250 kts. to 220 kts. approaching the ZZZZZ fix (Initial Approach Fix) for the RNAV XX approach. As the Flying Pilot; I asked the FO (First Officer) for Flaps 10 at which point he moved the flap handle from zero to ten and advised me the flaps were not moving. I asked him to bring the flap handle back to zero and try again. The FO attempted the second attempt but the flaps did not move. I advised the FO to let ATC know that we would need to break off the approach due to a flight control problem. We were given headings and I took over the radios and flew while the FO ran the Partial flaps/Jammed flaps checklist. I advised ATC that I needed the longest runway available at ZZZ1 and needed some headings and or an orbit to delay the approach until we ran the checklists and loaded the approach into the FMS and set up our navigation system. The Controller was very helpful and provided excellent air traffic control services while we accomplished the things we needed to do to set up and brief the no flap approach into Runway XYR using the ILS. The approach and landing went without incident and the aircraft was safely landed and taxied off the runway. After landing checklists were accomplished and the aircraft was taxied to FBO where we parked and deplaned our one passenger. Aircraft was shut down and the flaps were written up and Maintenance and Company were advised.
Gulfstream IV Captain reported trailing edge flaps failed to extend for landing and elected to divert. Aircraft landed safely.