Medium large transport taxies across runway when instructed to hold short.

Attributes
ACN	317900
Time
Date	199510
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mdw
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	ground other : 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 : 7000 flight time type : 2000
ASRS Report	317900
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	incursion : runway non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Taxied across runway 22L at taxiway P without clearance. The first officer made the landing on runway 31C. We exited the runway at the end and contacted ground control on 121.7. Ground cleared us to taxi via txwys north and P, hold short of runway 22L. As we exited the runway, I (the captain) was distracted by a malfunction in the automatic-spoiler system. The motor that extends/retracts the spoilers was continuing to run after the spoilers were retracted. I was attempting to fix that problem as ground read us the clearance and missed the 'hold short' instruction. As we turned onto taxiway P, the first officer was talking to company on our frequency to get a gate assignment and to alert maintenance to our problem. He came back on ground frequency just as I was entering the active runway 22L. At that point ground advised we were to hold short, but by then I was already 1/2 way across and could not stop. I told ground I thought I was cleared to the gate, but the first officer confirmed we had been told to hold short of runway 22L. Another B737 was entering the runway with clearance to takeoff, but he saw us and did not start the takeoff roll. This incident was undoubtedly caused by one crew member being distracted at one critical moment (when the clearance was issued) and the other being distracted at another critical moment (as the runway was being crossed).

Original NASA ASRS Text

Title: MLG TAXIES ACROSS RWY WHEN INSTRUCTED TO HOLD SHORT.

Narrative: TAXIED ACROSS RWY 22L AT TXWY P WITHOUT CLRNC. THE FO MADE THE LNDG ON RWY 31C. WE EXITED THE RWY AT THE END AND CONTACTED GND CTL ON 121.7. GND CLRED US TO TAXI VIA TXWYS N AND P, HOLD SHORT OF RWY 22L. AS WE EXITED THE RWY, I (THE CAPT) WAS DISTRACTED BY A MALFUNCTION IN THE AUTO-SPOILER SYS. THE MOTOR THAT EXTENDS/RETRACTS THE SPOILERS WAS CONTINUING TO RUN AFTER THE SPOILERS WERE RETRACTED. I WAS ATTEMPTING TO FIX THAT PROB AS GND READ US THE CLRNC AND MISSED THE 'HOLD SHORT' INSTRUCTION. AS WE TURNED ONTO TXWY P, THE FO WAS TALKING TO COMPANY ON OUR FREQ TO GET A GATE ASSIGNMENT AND TO ALERT MAINT TO OUR PROB. HE CAME BACK ON GND FREQ JUST AS I WAS ENTERING THE ACTIVE RWY 22L. AT THAT POINT GND ADVISED WE WERE TO HOLD SHORT, BUT BY THEN I WAS ALREADY 1/2 WAY ACROSS AND COULD NOT STOP. I TOLD GND I THOUGHT I WAS CLRED TO THE GATE, BUT THE FO CONFIRMED WE HAD BEEN TOLD TO HOLD SHORT OF RWY 22L. ANOTHER B737 WAS ENTERING THE RWY WITH CLRNC TO TKOF, BUT HE SAW US AND DID NOT START THE TKOF ROLL. THIS INCIDENT WAS UNDOUBTEDLY CAUSED BY ONE CREW MEMBER BEING DISTRACTED AT ONE CRITICAL MOMENT (WHEN THE CLRNC WAS ISSUED) AND THE OTHER BEING DISTRACTED AT ANOTHER CRITICAL MOMENT (AS THE RWY WAS BEING CROSSED).

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.