2 runway incursions at midway airport, il.

Attributes
ACN	471800
Time
Date	200005
Day	Fri
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
Make Model Name	Boeing Company Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4560 flight time type : 440
ASRS Report	471800
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : runway non adherence : clearance non adherence : far
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance Airport
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

A flight at mdw airport gate X given instructions to 'taxi to runway 31C via taxiway pk, hold short runway 31R.' first officer read instructions back verbatim. Captain taxied across active runway and held short of runway 31C. Causes: 1) first time taxiing from gate X for both captain and first officer -- normal taxi route to runway 31C is big l-hand turn to the threshold of both runway 31R&C. 2) taxi instructions given 'taxi to runway 31C via taxiway pk hold short of runway 31R' -- out of sequence. Better; 'hold short of runway 31R then taxi to runway 31C via taxiway pk.' 3) first officer head down doing taxi checklist as called for by the captain. Solution: delay taxi check until across all active runways. No traffic conflict occurred as a result of runway incursion.

Original NASA ASRS Text

Title: 2 RWY INCURSIONS AT MIDWAY ARPT, IL.

Narrative: A FLT AT MDW ARPT GATE X GIVEN INSTRUCTIONS TO 'TAXI TO RWY 31C VIA TXWY PK, HOLD SHORT RWY 31R.' FO READ INSTRUCTIONS BACK VERBATIM. CAPT TAXIED ACROSS ACTIVE RWY AND HELD SHORT OF RWY 31C. CAUSES: 1) FIRST TIME TAXIING FROM GATE X FOR BOTH CAPT AND FO -- NORMAL TAXI RTE TO RWY 31C IS BIG L-HAND TURN TO THE THRESHOLD OF BOTH RWY 31R&C. 2) TAXI INSTRUCTIONS GIVEN 'TAXI TO RWY 31C VIA TXWY PK HOLD SHORT OF RWY 31R' -- OUT OF SEQUENCE. BETTER; 'HOLD SHORT OF RWY 31R THEN TAXI TO RWY 31C VIA TXWY PK.' 3) FO HEAD DOWN DOING TAXI CHKLIST AS CALLED FOR BY THE CAPT. SOLUTION: DELAY TAXI CHK UNTIL ACROSS ALL ACTIVE RWYS. NO TFC CONFLICT OCCURRED AS A RESULT OF RWY INCURSION.

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.