Taxiway excursion. Flight crew confused instructions.

Attributes
ACN	299660
Time
Date	199503
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : jfk
State Reference	NY
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	SF 340B
Operating Under FAR Part	Part 135
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 75 flight time total : 4200 flight time type : 75
ASRS Report	299660
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Given standard taxi instructions from ramp to runway 22R. 'Right inner-alpha-X-ray-22R.' upon crossing runway 13L we noted that alpha leading to x-ray was closed. We opted for alpha alpha - x-ray and found ourselves on x-ray which we found to be closed. Ground control called port authority/authorized which removed closure cones and allowed us to pass. We queried ground as to original taxi instructions and ground control stated that original instructions were 'right inner-bravo-X-ray-22R.' we (first officer and myself) recall hearing 'right-inner-alpha-X-ray.' we believe controller was originally mistaken in issuing instructions and we erred in choosing alpha-alpha when we found alpha closed without inquiry or clarification. The taxiway closure was not reflected on the ATIS or NOTAMS at the time.

Original NASA ASRS Text

Title: TXWY EXCURSION. FLC CONFUSED INSTRUCTIONS.

Narrative: GIVEN STANDARD TAXI INSTRUCTIONS FROM RAMP TO RWY 22R. 'R INNER-ALPHA-X-RAY-22R.' UPON XING RWY 13L WE NOTED THAT ALPHA LEADING TO X-RAY WAS CLOSED. WE OPTED FOR ALPHA ALPHA - X-RAY AND FOUND OURSELVES ON X-RAY WHICH WE FOUND TO BE CLOSED. GND CTL CALLED PORT AUTH WHICH REMOVED CLOSURE CONES AND ALLOWED US TO PASS. WE QUERIED GND AS TO ORIGINAL TAXI INSTRUCTIONS AND GND CTL STATED THAT ORIGINAL INSTRUCTIONS WERE 'R INNER-BRAVO-X-RAY-22R.' WE (FO AND MYSELF) RECALL HEARING 'R-INNER-ALPHA-X-RAY.' WE BELIEVE CTLR WAS ORIGINALLY MISTAKEN IN ISSUING INSTRUCTIONS AND WE ERRED IN CHOOSING ALPHA-ALPHA WHEN WE FOUND ALPHA CLOSED WITHOUT INQUIRY OR CLARIFICATION. THE TXWY CLOSURE WAS NOT REFLECTED ON THE ATIS OR NOTAMS AT THE TIME.

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.