A321
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Communication Breakdown; Distraction; Situational Awareness; Time Pressure; Workload
Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Incursion Taxiway
Flight Crew Became Reoriented
Human Factors
After a 2 hour maintenance delay I was taxiing from gate XX to spot XX. My First Officer (FO) was just back from furlough and [was] a bit behind. He was having trouble with the ground frequencies so I diverted some of my attention to helping him with the frequency. In doing so I taxied across the line and my nose was out on taxiway Kilo. There were no other airplanes in the area but Ground did point it out to us (when we finally got the right frequency) that we were on taxiway Kilo. I've been doing this a long time and I violated one of my own rules- stop the aircraft and sort out the problem. I also did another thing that I strive not to do- micro-manage my FO. Causally speaking it was a wake up to me. Stop the plane.
Captain reported passing the hold short lines on a taxiway due to distractions from helping his First Officer with tasks.