Narrative:

We exited the ramp at spot X; opposite our normal taxi route due to construction. Ground instructed us to taxi to runway 27L via 'M; BM6; B.' the captain identified this unfamiliar route as a threat and we proceeded slowly while referencing jepps pg 20-9B; moving map; and taxiway painted references. We completed the left 45 degree turn onto taxiway M then right 45 degree turn then left 45 degree turn onto BM6 and then attempted to acquire signage for taxiway B while referencing moving map. During these final turns I misidentified taxiway B and announced the 'second right' as B which was in fact D.quickly identifying this error I communicated with the captain that B was at our 2 to 3:00 position. The captain assessed this required turn of nearly 90 degrees as a threat and brought the aircraft to a stop. This placed us well short of taxiway D in the vicinity of the intersection of BM6 and B. We came up with a game plan and I communicated with ground that we had missed the turn onto B; were holding short of D; and requested taxi onto D. We were given clearance to taxi via D; give way to an aircraft that had followed us out and was on B; resume our taxi onto B and followed them. At no time did we assess a taxiway incursion. In fact; I recall looking down taxiway B at my 3:00 position after we had stopped. Further movement was coordinated with ground during which I offered our apologies. We received a 'no worries' response and therefore assumed there were no issues.complicated; unfamiliar taxi route at a familiar airport. Moving map display limitations compared to the more familiar efb. Taxiway signage (paint) limitations at lfpg when taxiing outbound. Usage and thorough preflight study of str departure routes identified on jepp 20-10C (north route 21; north route 22). Ie: 'left-right-left-right'

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Original NASA ASRS Text

Title: Air carrier flight crew reported poor taxiway signage and paint; insufficient lighting and an unfamiliar taxi route caused them to miss a turn onto a taxiway at LFPG airport.

Narrative: We exited the ramp at Spot X; opposite our normal taxi route due to construction. Ground instructed us to taxi to Runway 27L via 'M; BM6; B.' The Captain identified this unfamiliar route as a threat and we proceeded slowly while referencing JEPPS pg 20-9B; moving map; and taxiway painted references. We completed the left 45 degree turn onto taxiway M then right 45 degree turn then left 45 degree turn onto BM6 and then attempted to acquire signage for Taxiway B while referencing moving map. During these final turns I misidentified Taxiway B and announced the 'second right' as B which was in fact D.Quickly identifying this error I communicated with the Captain that B was at our 2 to 3:00 position. The Captain assessed this required turn of nearly 90 degrees as a threat and brought the aircraft to a stop. This placed us well short of Taxiway D in the vicinity of the intersection of BM6 and B. We came up with a game plan and I communicated with ground that we had missed the turn onto B; were holding short of D; and requested taxi onto D. We were given clearance to taxi via D; give way to an aircraft that had followed us out and was on B; resume our taxi onto B and followed them. At no time did we assess a taxiway incursion. In fact; I recall looking down taxiway B at my 3:00 position after we had stopped. Further movement was coordinated with ground during which I offered our apologies. We received a 'no worries' response and therefore assumed there were no issues.Complicated; unfamiliar taxi route at a familiar airport. Moving map display limitations compared to the more familiar EFB. Taxiway signage (paint) limitations at LFPG when taxiing outbound. Usage and thorough preflight study of STR Departure routes identified on JEPP 20-10C (North Route 21; North Route 22). IE: 'Left-right-left-right'

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.