Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Training / Qualification; Communication Breakdown; Confusion
Deviation / Discrepancy - Procedural Clearance; Flight Deck / Cabin / Aircraft Event Other / Unknown; Ground Incursion Taxiway
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Became Reoriented
Human Factors; Procedure; Company Policy; Airport
After landing Runway 1L at LAS and clearing the runway at Taxiway Sierra; I contacted Ground Control to taxi to the FBO ramp. Our instructions where to taxi straight ahead on Sierra; make a left turn onto Taxiway Hotel then a right turn onto Taxiway Whiskey into the ramp. I wrote the instructions down; had my iPad out and on the taxi chart and reviewed them with the PIC. I told the PIC taxi straight ahead and make the left turn onto Hotel. The PIC refused and turned left onto the inner taxiway Foxtrot placing us on the wrong taxiway and therefore not complying with our clearance. I told him we were on the wrong taxiway and to stop. When he didn't; I stepped on the brakes bringing the aircraft to a stop and showed him the taxiway sign in front of us that indicated we were now on Foxtrot instead of Hotel. I informed Ground Control of our mistake and she issued a new clearance to continue on Foxtrot to Whiskey and into the ramp. We continued with no further mistakes. This was at the end of a long day that resulted in a fatigue call but that is no excuse. Taxiing the aircraft is a fundamental and basic skill. The issue was the Pilot-in-Command's refusal to listen to the Controller's instructions and my directions while showing him our location on the taxi chart. I do not know if this was fatigue; insistence; confusion or incompetence on his part. The prudent thing would have been for him to just stop the plane and sort out the taxi route instead of refusing to listen to me. This shows a blatant disregard on his part for CRM procedures and a total lack of professionalism. I had to intervene and stop the plane myself and force him to see his error. I believe with our reduced training foot print the principles of good CRM and airmanship are beginning to wane. This error is an example. We need take more time to enforce and implant the concepts of CRM. This error could have easily been prevented.
The Captain (SIC) of a Citation Sovereign took the initiative and braked the aircraft to a stop when the Captain (PIC) was unresponsive to his insistence that they were taxiing on the wrong taxiway per their ATC clearance.