Gulfstream V / G500 / G550
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Provided Assistance; Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Human Factors
Filed route was KPTK LAYNE ZZZ ZZZ1. Our clearance was KPTK LAYNE BNNET MBS ZZZ ZZZ1. We failed to put BNNET in the FMC and after LAYNE ATC noticed we were not tracking to BNNET. We were given a heading to get back on assigned routing.
We had checked the FMS for proper route before the clearance. We then loaded the routes in the FMS and IPADs but then checked and talked about the new route using our IPADs and never rechecked the FMS boxes. It was a slip of using one technology for another except one flys the aircraft and the other doesn't.
G550 flight crew reported they entered the route incorrectly in the FMS.