Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 162
Communication Breakdown; Distraction; Situational Awareness; Workload
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
Flight Crew Returned To Clearance; Flight Crew Became Reoriented
ATC Equipment / Nav Facility / Buildings; Airport
Departing LAX and expecting 24L but; because of Runway 24R being closed; they assigned 25R. We were so concentrating on accomplishing the departure plan change that we did not review the 10-9 page for taxiway hotspots for intended runway.We were taxiing east on B and cleared by Ground to taxi to Runway 25R. When Ground switched us to Tower; we were approaching 25R and neither of us saw the sign for 'all aircraft hold here' short of Taxiway F. Tower inquired if we were going to hold short; but we had already entered the intersection. There were no other aircraft in vicinity of intersection and it sounded like Tower was getting ready to clear us anyway.We managed to plan; brief; and execute the runway change in the FMC and accomplished all required checklists for departure but; in hindsight; should have incorporated the taxi route and a review of the 10-9 page as well especially when using an unfamiliar runway. We also think that Ground Control could have alleviated the entire problem by issuing a clearance to taxi on B and hold short of F before switching to Tower.
We had set up to depart on Runway 24L. When we called for taxi; Ground assigned us Runway 25L. I was programming the [computer] while we were taxiing out. We were cleared to taxi to Runway 25L via Bravo by the LAX Ground Controller on 121.75. I had the [computer] in my hand so that we could run the Departure Plan Checklist and I didn't see the airport information sign prior to Taxiway Foxtrot. Passing through the intersection; Tower called and asked if we were going to stop [at] Foxtrot. We thought we were cleared to taxi full length because we had missed the sign.
A Large Transport flight crew reported being assigned a runway different from what they expected while taxiing out for takeoff. They neglected to brief the revised taxi route and missed the airport sign 'all aircraft hold here' short of Taxiway F. They did not hold short and ATC called to admonish them.