Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Confusion; Communication Breakdown; Distraction
Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
General None Reported / Taken
Human Factors; Airport
Flight to LAX; after landing on Runway 24R we were cleared to taxi via AA; then left on C; right turn on R; and right turn on B; hold short of U and monitor South Tower frequency. Tower then cleared us to turn onto U and hold short of 25R. We made the left turn and realized we had crossed the hold short line; which is on the edge of Taxiway B for Taxiway U; and immediately stopped the aircraft. At no time did the aircraft encroach on Runway 25R. We were then cleared to cross 25R and then 25L and taxi via A to parking. When Tower cleared us to turn onto U and hold short of Runway 25R I assumed the hold short line would be on Taxiway U between Taxiway B and Runway 25R. With this in mind I was looking to the right to clear and back forward at which time the hold short line was out of view under the nose of the aircraft.
[Narrative #2 contained no additional information.]
An aircraft on Taxiway B was told to hold short of LAX Runway 25R on Taxiway U; but the aircraft taxied beyond the hold short line because it is at the immediate intersection of B and U some distance from the runway.