An air carrier first officer reported that after clearing lax runway 24 on taxiway Z; ATC taxi clear...

Narrative:

Cleared across 24L at Z by tower with instructions from ground control 'taxi east; right; south route'. First time for me using the 'new' right taxiway since recently opened. Captain and I made turn on E-13 incorrectly and stopped aircraft straight ahead. Permission from ground control to do a turn and get back to right approved. As captain powered up for left turn she noticed a yellow sign (initially at our 7 o'clock) out her window and we both thought right main gear clearance could be in doubt. We checked for no obstructions on surface and continued eastbound and then right turn to join taxiway right southbound. Evidently we are not the first crew to turn onto E-13 thinking it was the 'new' taxiway right. Our 10-9 pages were out but the left and right turns come quickly when crossing runway 24L at Z. There is a caution on the 10-8B page but it is buried below the runway somewhat and I missed it. We expected to roll to aa off of 24R upon landing but a B747 had landed in front of us and was occupying. Possibly better signage/lighting and more attention to detail might have precluded this event.

Original NASA ASRS Text

Title: An air carrier First Officer reported that after clearing LAX Runway 24 on Taxiway Z; ATC taxi clearance was E; R; South Route. On Taxiway E the aircraft the crew became confused and turned right onto Taxiway E-13; claiming it was not clearly marked and very close to Taxiway R.

Narrative: Cleared across 24L at Z by Tower with instructions from Ground Control 'taxi E; R; south route'. First time for me using the 'new' R taxiway since recently opened. Captain and I made turn on E-13 incorrectly and stopped aircraft straight ahead. Permission from Ground Control to do a turn and get back to R approved. As Captain powered up for left turn she noticed a yellow sign (initially at our 7 o'clock) out her window and we both thought right main gear clearance could be in doubt. We checked for no obstructions on surface and continued eastbound and then right turn to join taxiway R southbound. Evidently we are not the first crew to turn onto E-13 thinking it was the 'new' taxiway R. Our 10-9 pages were out but the left and right turns come quickly when crossing Runway 24L at Z. There is a caution on the 10-8B page but it is buried below the runway somewhat and I missed it. We expected to roll to AA off of 24R upon landing but a B747 had landed in front of us and was occupying. Possibly better signage/lighting and more attention to detail might have precluded this event.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	915218
Time
Date	201010
Local Time Of Day	1201-1800
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Widebody Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 180 Flight Crew Total 10000 Flight Crew Type 3500
Events
Anomaly	Ground Event / Encounter Other / Unknown Ground Incursion Taxiway

An air carrier first officer reported that after clearing lax runway 24 on taxiway Z; ATC taxi clearance was east; right; south route. On taxiway east the aircraft the crew became confused and turned right onto taxiway E-13; claiming it was not clearly marked and very close to taxiway right.