B737 captain reports lack of sign identifying taxiway A6 while westbound on taxiway B at las.

Attributes
ACN	816375
Time
Date	200812
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi ground : maintenance
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	816375
Events
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Airport
Primary Problem	Airport
Situations
Airport	markings : las.airport signage : las.airport

Narrative:

Gee; I hope it's ok to use the system for reporting situations that are potential problems even if there wasn't really an 'event' where anything bad happened. Anyway; taxiing out of las; wbound on taxiway B; told to hold short of A6. As you taxi on taxiway B; there is no A6 sign. A6 actually turns north off runway 25R; then becomes B6 as it crosses taxiway B. There is a sign on each side of taxiway B; and both say 'B6.' if one were not familiar; or if one were not a consummate professional diligently referencing the taxi chart (airport diagram) during taxi; it would be really easy to miss A6; since both signs say B6. We did of course correctly identify the taxiway; but ground control should be made aware that there is no A6 sign on taxiway B; and either the sign should be replaced; or ground control should instruct aircraft on taxiway B to hold short of B6; not A6. Just a suggestion.

Original NASA ASRS Text

Title: B737 CAPTAIN REPORTS LACK OF SIGN IDENTIFYING TAXIWAY A6 WHILE WESTBOUND ON TAXIWAY B AT LAS.

Narrative: GEE; I HOPE IT'S OK TO USE THE SYSTEM FOR RPTING SITUATIONS THAT ARE POTENTIAL PROBS EVEN IF THERE WASN'T REALLY AN 'EVENT' WHERE ANYTHING BAD HAPPENED. ANYWAY; TAXIING OUT OF LAS; WBOUND ON TXWY B; TOLD TO HOLD SHORT OF A6. AS YOU TAXI ON TXWY B; THERE IS NO A6 SIGN. A6 ACTUALLY TURNS N OFF RWY 25R; THEN BECOMES B6 AS IT CROSSES TXWY B. THERE IS A SIGN ON EACH SIDE OF TXWY B; AND BOTH SAY 'B6.' IF ONE WERE NOT FAMILIAR; OR IF ONE WERE NOT A CONSUMMATE PROFESSIONAL DILIGENTLY REFERENCING THE TAXI CHART (ARPT DIAGRAM) DURING TAXI; IT WOULD BE REALLY EASY TO MISS A6; SINCE BOTH SIGNS SAY B6. WE DID OF COURSE CORRECTLY IDENT THE TXWY; BUT GND CTL SHOULD BE MADE AWARE THAT THERE IS NO A6 SIGN ON TXWY B; AND EITHER THE SIGN SHOULD BE REPLACED; OR GND CTL SHOULD INSTRUCT ACFT ON TXWY B TO HOLD SHORT OF B6; NOT A6. JUST A SUGGESTION.

Data retrieved from NASA's ASRS site as of May 2009 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.