Commuter light transport unauthorized runway crossing at mdw.

Attributes
ACN	188396
Time
Date	199109
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lwm
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	ground : holding 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 : 240 flight time total : 9800 flight time type : 4000
ASRS Report	188396
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 4100 flight time type : 1500
ASRS Report	188156
Events
Anomaly	incursion : runway non adherence : far non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight was cleared to taxi to runway 13L via taxiway P and north. We did so, following an airline medium large transport. When we stopped behind the medium large transport ground asked if we were aware that we had just crossed an active runway. This airport is so poorly marked it is unsafe. Hold short lines are so worn they are not visible and the signs are few. Supplemental information from acn 188156: clearance supposedly said to hold short of 13L. We followed an medium large transport who crossed the left and we followed him to 13C. Not hearing the clearance, I didn't stop captain from crossing 13L. I should have a copy of clearance to help captain and he should have had an idea also. Also, the marking is very poor on the hold short and the area is a ramp/taxi combination that is poorly labeled and very confusing.

Original NASA ASRS Text

Title: COMMUTER LTT UNAUTHORIZED RWY XING AT MDW.

Narrative: FLT WAS CLRED TO TAXI TO RWY 13L VIA TAXIWAY P AND N. WE DID SO, FOLLOWING AN AIRLINE MLG. WHEN WE STOPPED BEHIND THE MLG GND ASKED IF WE WERE AWARE THAT WE HAD JUST CROSSED AN ACTIVE RWY. THIS ARPT IS SO POORLY MARKED IT IS UNSAFE. HOLD SHORT LINES ARE SO WORN THEY ARE NOT VISIBLE AND THE SIGNS ARE FEW. SUPPLEMENTAL INFO FROM ACN 188156: CLRNC SUPPOSEDLY SAID TO HOLD SHORT OF 13L. WE FOLLOWED AN MLG WHO CROSSED THE L AND WE FOLLOWED HIM TO 13C. NOT HEARING THE CLRNC, I DIDN'T STOP CAPT FROM XING 13L. I SHOULD HAVE A COPY OF CLRNC TO HELP CAPT AND HE SHOULD HAVE HAD AN IDEA ALSO. ALSO, THE MARKING IS VERY POOR ON THE HOLD SHORT AND THE AREA IS A RAMP/TAXI COMBINATION THAT IS POORLY LABELED AND VERY CONFUSING.

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.