A B737 flight crew fails to hold short from runway 31R as cleared at mdw, il.

Attributes
ACN	472298
Time
Date	200005
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mdw.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi ground : pushback
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : multi engine
Experience	flight time last 90 days : 170
ASRS Report	472298
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued advisory none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Environmental Factor Airport ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Crossed active runway when issued hold short clearance. Classic case of multiple distrs creating a chain of events culminating in a serious situation. Began with taxi in and last min gate change to unfamiliar gate. Visiting with tug driver, he informed me he would push back between X and Y terminal. Cleared to push, informed by ground 'push onto taxiway Y, tail to city.' repeated clearance to tug, but I could tell he was pushing off taxiway Y. Considered trying to correct but thought tower was just trying to expedite us, and tug driver seemed determined he knew what ground wanted. Upon call for taxi, ground informed she wanted us on taxiway Y due to aircraft pushing in alley. I started thinking of memo on capts being in command on pushback when I heard ground clear to runway 31C via taxiway P, taxiway G, and immediately thought 'not sure but think I know where she wants us,' and looked at chart to verify. Missed first officer's readback. Beginning to taxi, saw aircraft roll out on runway 31R and asked first officer about any hold short and he replied none. He was retrieving numbers because he had failed to note them before push. Visually cleared runway 31R and taxied across. 2 distraction pilots. I believe if hold clearance was issued first it would make a difference. Just have to listen to entire clearance.

Original NASA ASRS Text

Title: A B737 FLC FAILS TO HOLD SHORT FROM RWY 31R AS CLRED AT MDW, IL.

Narrative: CROSSED ACTIVE RWY WHEN ISSUED HOLD SHORT CLRNC. CLASSIC CASE OF MULTIPLE DISTRS CREATING A CHAIN OF EVENTS CULMINATING IN A SERIOUS SIT. BEGAN WITH TAXI IN AND LAST MIN GATE CHANGE TO UNFAMILIAR GATE. VISITING WITH TUG DRIVER, HE INFORMED ME HE WOULD PUSH BACK BTWN X AND Y TERMINAL. CLRED TO PUSH, INFORMED BY GND 'PUSH ONTO TXWY Y, TAIL TO CITY.' REPEATED CLRNC TO TUG, BUT I COULD TELL HE WAS PUSHING OFF TXWY Y. CONSIDERED TRYING TO CORRECT BUT THOUGHT TWR WAS JUST TRYING TO EXPEDITE US, AND TUG DRIVER SEEMED DETERMINED HE KNEW WHAT GND WANTED. UPON CALL FOR TAXI, GND INFORMED SHE WANTED US ON TXWY Y DUE TO ACFT PUSHING IN ALLEY. I STARTED THINKING OF MEMO ON CAPTS BEING IN COMMAND ON PUSHBACK WHEN I HEARD GND CLR TO RWY 31C VIA TXWY P, TXWY G, AND IMMEDIATELY THOUGHT 'NOT SURE BUT THINK I KNOW WHERE SHE WANTS US,' AND LOOKED AT CHART TO VERIFY. MISSED FO'S READBACK. BEGINNING TO TAXI, SAW ACFT ROLL OUT ON RWY 31R AND ASKED FO ABOUT ANY HOLD SHORT AND HE REPLIED NONE. HE WAS RETRIEVING NUMBERS BECAUSE HE HAD FAILED TO NOTE THEM BEFORE PUSH. VISUALLY CLRED RWY 31R AND TAXIED ACROSS. 2 DISTR PLTS. I BELIEVE IF HOLD CLRNC WAS ISSUED FIRST IT WOULD MAKE A DIFFERENCE. JUST HAVE TO LISTEN TO ENTIRE CLRNC.

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.