A mdw ground controller and two B737 pilots describe the confusion which developed between tower and...

Attributes
ACN	1123918
Time
Date	201310
Local Time Of Day	1201-1800
Place
Locale Reference	MDW.Airport
State Reference	IL
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Route In Use	None
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Taxi
Route In Use	None
Flight Plan	IFR
Person 1
Function	Ground
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Pilot Not Flying First Officer
Experience	Flight Crew Last 90 Days 231
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy Ground Incursion Runway

Narrative:

We were landing and departing runway 31C; also departing runway 22L due to compression on final for runway 31C. The next controller had plugged in for the relief briefing. A B737 was back taxiing runway 31R to hold short of runway 22L. I asked local control to cross runway 22L behind the departure; which was another B737 aircraft. I heard the controller respond and thought crossing was approved. After the B737 departure; I told the other B737 to cross runway 22L. I then noticed a cessna starting departure roll on [runway] 22L. I asked local if that aircraft was departing. I told the B737 to stop. The crew read back instructions to stop; crossed the hold short line painted on [runway] 31R; but not did enter the runway. The asde-X did not alert. The cessna departed safely. The local controller said afterward that I was told to cross behind the second departure; the cessna. I either misunderstood or did not hear the coordination completely. The only thing that would prevent the recurrence of this event would be more complete coordination and ensuring that what I heard was correct.

Original NASA ASRS Text

Title: A MDW Ground Controller and two B737 pilots describe the confusion which developed between Tower and Ground when a Cessna Citation was cleared for takeoff while the B737 was cleared to cross that aircraft's runway. The Captain stopped the aircraft barely clear of the runway.

Narrative: We were landing and departing Runway 31C; also departing Runway 22L due to compression on final for Runway 31C. The next Controller had plugged in for the relief briefing. A B737 was back taxiing Runway 31R to hold short of Runway 22L. I asked Local Control to cross Runway 22L behind the departure; which was another B737 aircraft. I heard the Controller respond and thought crossing was approved. After the B737 departure; I told the other B737 to cross Runway 22L. I then noticed a Cessna starting departure roll on [Runway] 22L. I asked local if that aircraft was departing. I told the B737 to stop. The crew read back instructions to stop; crossed the hold short line painted on [Runway] 31R; but not did enter the runway. The ASDE-X did not alert. The Cessna departed safely. The Local Controller said afterward that I was told to cross behind the second departure; the Cessna. I either misunderstood or did not hear the coordination completely. The only thing that would prevent the recurrence of this event would be more complete coordination and ensuring that what I heard was correct.

Data retrieved from NASA's ASRS site as of July 2013 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.

A mdw ground controller and two B737 pilots describe the confusion which developed between tower and ground when a cessna citation was cleared for takeoff while the B737 was cleared to cross that aircraft's runway. The captain stopped the aircraft barely clear of the runway.