Air carrier Y landed on occupied runway had less than standard separation from air carrier X runway incursion crossing runway. System error.

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Attributes
ACN	287038
Time
Date	199410
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dfw
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lga
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Experience	controller radar : 16
ASRS Report	287038
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe non adherence : clearance non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : investigated
Miss Distance	horizontal : 5000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Dfw was in a north flow landing runways 31R and runway 35R departing runway 35L. The WX was extremely variable with scud layers affecting both tower visibility and final approachs for aircraft. Severe WX avoidance procedures were in effect with basically 1 departure route 10 mi intrail restr. MD80 landing runway 35R, air carrier X landing runway 31R. Air carrier X was first to land runway 31R. Aircraft was instructed to taxi via taxiway 19 to hold short of runway 35R. As the next aircraft was exiting runway 31R I noticed X was on taxiway 18 holding short of the runway 17L ILS critical area. This was too far back from the runway to effectively get him across between runway 35R arrs so I instructed X to move up and hold short of runway 35L (intending to say 35R) at the same time I instructed Y to hold short of runway 35L on taxiway 19. Air carrier Y landing runway 35R asked if I had restricted him to hold short of any taxiway and I observed X mid runway on taxiway 19 while Y was approaching in high speed on runway 35R. I advised Y that he had not been restr and we would look into the crossing.

Original NASA ASRS Text

Title: ACR Y LANDED ON OCCUPIED RWY HAD LTSS FROM ACR X RWY INCURSION XING RWY. SYS ERROR.

Narrative: DFW WAS IN A N FLOW LNDG RWYS 31R AND RWY 35R DEPARTING RWY 35L. THE WX WAS EXTREMELY VARIABLE WITH SCUD LAYERS AFFECTING BOTH TWR VISIBILITY AND FINAL APCHS FOR ACFT. SEVERE WX AVOIDANCE PROCS WERE IN EFFECT WITH BASICALLY 1 DEP RTE 10 MI INTRAIL RESTR. MD80 LNDG RWY 35R, ACR X LNDG RWY 31R. ACR X WAS FIRST TO LAND RWY 31R. ACFT WAS INSTRUCTED TO TAXI VIA TXWY 19 TO HOLD SHORT OF RWY 35R. AS THE NEXT ACFT WAS EXITING RWY 31R I NOTICED X WAS ON TXWY 18 HOLDING SHORT OF THE RWY 17L ILS CRITICAL AREA. THIS WAS TOO FAR BACK FROM THE RWY TO EFFECTIVELY GET HIM ACROSS BTWN RWY 35R ARRS SO I INSTRUCTED X TO MOVE UP AND HOLD SHORT OF RWY 35L (INTENDING TO SAY 35R) AT THE SAME TIME I INSTRUCTED Y TO HOLD SHORT OF RWY 35L ON TXWY 19. ACR Y LNDG RWY 35R ASKED IF I HAD RESTRICTED HIM TO HOLD SHORT OF ANY TXWY AND I OBSERVED X MID RWY ON TXWY 19 WHILE Y WAS APCHING IN HIGH SPD ON RWY 35R. I ADVISED Y THAT HE HAD NOT BEEN RESTR AND WE WOULD LOOK INTO THE XING.

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.