B737 crew taxies on runway without clearance at bwi.

Attributes
ACN	422770
Time
Date	199812
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bwi
State Reference	MD
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Experience	flight time last 90 days : 240 flight time total : 7600 flight time type : 3600
ASRS Report	422770
Person 2
Affiliation	company : air carrier
Function	flight crew : captain flight crew : single pilot
Events
Anomaly	non adherence : clearance non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Air Traffic Incident	Pilot Deviation

Narrative:

This event could be described as an inadvertent use of runway 4/22 in bwi to taxi out to the active runway 28. We pushed out of the gate and received instructions to 'taxi to runway 28.' so, we used taxiway east to taxiway P with the intent to continue on taxiway U out to runway 28. However, taxiway U was closed (we missed that on the ATIS). So, by that time, the airplane was on runway 4/22 and we made a left turn down runway 4/22 to taxiway C and then out to runway 28. I advised ground of our predicament, and while it was not a dangerous situation, it certainly highlighted our lack of situational awareness in and around a confusing complex of txwys/runways. Runway 4/22 was not being used for takeoffs and lndgs. Runway 33L/right was configured for landing, runway 28 configured for takeoff.

Original NASA ASRS Text

Title: B737 CREW TAXIES ON RWY WITHOUT CLRNC AT BWI.

Narrative: THIS EVENT COULD BE DESCRIBED AS AN INADVERTENT USE OF RWY 4/22 IN BWI TO TAXI OUT TO THE ACTIVE RWY 28. WE PUSHED OUT OF THE GATE AND RECEIVED INSTRUCTIONS TO 'TAXI TO RWY 28.' SO, WE USED TXWY E TO TXWY P WITH THE INTENT TO CONTINUE ON TXWY U OUT TO RWY 28. HOWEVER, TXWY U WAS CLOSED (WE MISSED THAT ON THE ATIS). SO, BY THAT TIME, THE AIRPLANE WAS ON RWY 4/22 AND WE MADE A L TURN DOWN RWY 4/22 TO TXWY C AND THEN OUT TO RWY 28. I ADVISED GND OF OUR PREDICAMENT, AND WHILE IT WAS NOT A DANGEROUS SIT, IT CERTAINLY HIGHLIGHTED OUR LACK OF SITUATIONAL AWARENESS IN AND AROUND A CONFUSING COMPLEX OF TXWYS/RWYS. RWY 4/22 WAS NOT BEING USED FOR TKOFS AND LNDGS. RWY 33L/R WAS CONFIGURED FOR LNDG, RWY 28 CONFIGURED FOR TKOF.

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.