Air carrier flight crew reported experiencing a runway incursion during taxi and cited several facto...

Attributes
ACN	1748156
Time
Date	202006
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Medium Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Deviation - Procedural Clearance Ground Incursion Runway Ground Incursion Taxiway

Narrative:

We were on the ramp; ready to depart and I asked for taxi clearance. We received taxi instructions to runway xx via [taxiway] X; runway xr approach; [taxiway] Y. It was not clear to me how this pathway would look like as the taxiways and runways are intertwined in that area. The captain copied the clearance and proceeded to taxi. We had runway xyl set in the FMS and therefore; the captain asked for runway change checklist. I set the new heading and was programming the FMS when I heard tower asking us if we were taking Y. I realized the controller was prompting us of a wrong turn or position on the airport. We stopped; I looked up and saw we were very close to the edge of runway xx; I could not see the hold short lines and I assumed they were behind us. At that point; we both acknowledged we were on the runway xx instead of taxiway X. The controller gave us new taxi instructions to back taxi on runway xx; Z; Y to runway xx at X. We continued on and had an uneventful flight.in retrospective; I should have asked for clarifications about our taxi path and pay attention outside the plane when crossing complicated intersections and runways.

Original NASA ASRS Text

Title: Air carrier flight crew reported experiencing a runway incursion during taxi and cited several factors including a runway change and communication issues.

Narrative: We were on the ramp; ready to depart and I asked for taxi clearance. We received taxi instructions to Runway XX via [Taxiway] X; Runway XR approach; [Taxiway] Y. It was not clear to me how this pathway would look like as the taxiways and runways are intertwined in that area. The Captain copied the clearance and proceeded to taxi. We had Runway XYL set in the FMS and therefore; the Captain asked for runway change checklist. I set the new heading and was programming the FMS when I heard Tower asking us if we were taking Y. I realized the Controller was prompting us of a wrong turn or position on the airport. We stopped; I looked up and saw we were very close to the edge of Runway XX; I could not see the hold short lines and I assumed they were behind us. At that point; we both acknowledged we were on the Runway XX instead of Taxiway X. The Controller gave us new taxi instructions to back taxi on Runway XX; Z; Y to Runway XX at X. We continued on and had an uneventful flight.In retrospective; I should have asked for clarifications about our taxi path and pay attention outside the plane when crossing complicated intersections and runways.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.