Taxiway incursion at iah, tx. Non standard taxi routing in use due to closed runway.

Attributes
ACN	493940
Time
Date	200012
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Brasilia EMB-120 All Series
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : instrument pilot : commercial pilot : atp pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 2800 flight time type : 14000
ASRS Report	493940
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	incursion : taxiway non adherence : clearance
Independent Detector	other controllerb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Airport
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Due to the abnormal operations in iah, a new flow was created for taxiing. Runway 15L was closed. This occurrence occurred in the morning. Iah was landing and departing runway 26 and runway 27. An air carrier landed runway 26 and was parking on the south ramp. Normal taxi instructions would be 'nf' right on 'na' left on 'we' call south ramp at the base of the old tower. Upon exiting runway 26 on 'nf' we were given the following by an impatient ground controller: 'nf' to 'na' to 'northeast' right on 'wc' left on 'wa' left on 'wf' call south ramp at 'wf.' this instruction went right past my relatively new first officer. After an improper readback, the controller rattled the taxi instructions again. Our normal taxi route was being used by other aircraft at spot 2 to taxi 'we' to 'nb' to runway 26. After we turned on 'wc' we turned on 'wb' instead of 'wa.' I thought it looked tight to get around aircraft at spot 2 taxiing on 'we,' I slowed down past 'wd' well short of 'we.' the controller advised us we were on the wrong taxiway and told us to continue. We were never in any danger of any other traffic. Contributing factors were abnormal ground operation due to runway 15L being closed, impatient ground controller talking too fast, new first officer, early morning wake-up for the crew.

Original NASA ASRS Text

Title: TXWY INCURSION AT IAH, TX. NON STANDARD TAXI ROUTING IN USE DUE TO CLOSED RWY.

Narrative: DUE TO THE ABNORMAL OPS IN IAH, A NEW FLOW WAS CREATED FOR TAXIING. RWY 15L WAS CLOSED. THIS OCCURRENCE OCCURRED IN THE MORNING. IAH WAS LNDG AND DEPARTING RWY 26 AND RWY 27. AN ACR LANDED RWY 26 AND WAS PARKING ON THE S RAMP. NORMAL TAXI INSTRUCTIONS WOULD BE 'NF' R ON 'NA' L ON 'WE' CALL S RAMP AT THE BASE OF THE OLD TWR. UPON EXITING RWY 26 ON 'NF' WE WERE GIVEN THE FOLLOWING BY AN IMPATIENT GND CTLR: 'NF' TO 'NA' TO 'NE' R ON 'WC' L ON 'WA' L ON 'WF' CALL S RAMP AT 'WF.' THIS INSTRUCTION WENT RIGHT PAST MY RELATIVELY NEW FO. AFTER AN IMPROPER READBACK, THE CTLR RATTLED THE TAXI INSTRUCTIONS AGAIN. OUR NORMAL TAXI RTE WAS BEING USED BY OTHER ACFT AT SPOT 2 TO TAXI 'WE' TO 'NB' TO RWY 26. AFTER WE TURNED ON 'WC' WE TURNED ON 'WB' INSTEAD OF 'WA.' I THOUGHT IT LOOKED TIGHT TO GET AROUND ACFT AT SPOT 2 TAXIING ON 'WE,' I SLOWED DOWN PAST 'WD' WELL SHORT OF 'WE.' THE CTLR ADVISED US WE WERE ON THE WRONG TXWY AND TOLD US TO CONTINUE. WE WERE NEVER IN ANY DANGER OF ANY OTHER TFC. CONTRIBUTING FACTORS WERE ABNORMAL GND OP DUE TO RWY 15L BEING CLOSED, IMPATIENT GND CTLR TALKING TOO FAST, NEW FO, EARLY MORNING WAKE-UP FOR THE CREW.

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.