B737-300 crew was not able to identify the cleared taxiway because of missing signs at phx.

Attributes
ACN	507890
Time
Date	200104
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phx.airport
State Reference	AZ
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 24000 flight time type : 10000
ASRS Report	507890
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	incursion : taxiway non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	FAA Airport
Primary Problem	Airport
Air Traffic Incident	Pilot Deviation
Situations
Airport	markings : phx.airport procedure or policy : phx.airport signage : phx.airport

Narrative:

The taxi chart in phx does not show the correct names of txwys between taxiway B and taxiway C. We landed on runway 26 and were told to taxi in via taxiway B and taxiway C-9. As you proceed eastbound on taxiway B all of the txwys to the left are named bravo something. Most, but not all of the txwys to the right are named charley something. But the north side of the airport is under construction and a thorough search of taxi charts (10-6), (10-7), (10-8), (10-9), and (10-9B) give no clues as to the location of taxiway C-9. So we were left with reading signs along the way. When we reached taxiway B-9 on the left we could see no sign on the right, but we could see the sign for the next taxiway to the right. It was taxiway C-8, so we turned right. It turned out to be taxiway C-7. The naming of these taxiways are confusing. The charts are not current and they are confusing. ATC was not upset and there was no conflict, but to be given false information on taxi charts is inexcusable.

Original NASA ASRS Text

Title: B737-300 CREW WAS NOT ABLE TO IDENTIFY THE CLEARED TXWY BECAUSE OF MISSING SIGNS AT PHX.

Narrative: THE TAXI CHART IN PHX DOES NOT SHOW THE CORRECT NAMES OF TXWYS BETWEEN TXWY B AND TXWY C. WE LANDED ON RWY 26 AND WERE TOLD TO TAXI IN VIA TXWY B AND TXWY C-9. AS YOU PROCEED EASTBOUND ON TXWY B ALL OF THE TXWYS TO THE LEFT ARE NAMED BRAVO SOMETHING. MOST, BUT NOT ALL OF THE TXWYS TO THE RIGHT ARE NAMED CHARLEY SOMETHING. BUT THE NORTH SIDE OF THE ARPT IS UNDER CONSTRUCTION AND A THOROUGH SEARCH OF TAXI CHARTS (10-6), (10-7), (10-8), (10-9), AND (10-9B) GIVE NO CLUES AS TO THE LOCATION OF TXWY C-9. SO WE WERE LEFT WITH READING SIGNS ALONG THE WAY. WHEN WE REACHED TXWY B-9 ON THE LEFT WE COULD SEE NO SIGN ON THE RIGHT, BUT WE COULD SEE THE SIGN FOR THE NEXT TXWY TO THE RIGHT. IT WAS TXWY C-8, SO WE TURNED RIGHT. IT TURNED OUT TO BE TXWY C-7. THE NAMING OF THESE TAXIWAYS ARE CONFUSING. THE CHARTS ARE NOT CURRENT AND THEY ARE CONFUSING. ATC WAS NOT UPSET AND THERE WAS NO CONFLICT, BUT TO BE GIVEN FALSE INFORMATION ON TAXI CHARTS IS INEXCUSABLE.

Data retrieved from NASA's ASRS site as of July 2007 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.