Controller was unaware of runway flow change at the airport. Aircraft X departed south at the same time aircraft Y was landing to the north. Controller tried to separate both aircraft, but to no avail.

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Attributes
ACN	426690
Time
Date	199901
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dfw
State Reference	TX
Altitude	msl bound lower : 2500 msl bound upper : 3500
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Experience	controller radar : 13 controller supervisory : 3
ASRS Report	426690
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	none taken : insufficient time other
Consequence	Other
Miss Distance	horizontal : 15000 vertical : 750
Supplementary
Air Traffic Incident	Operational Error

Narrative:

A B727 aircraft X departed love field runway 13R to the south during a runway flow change. The AC95 aircraft Y was on final to runway 31R at 2500 ft. The B727 didn't call me until 2-3 mi southeast of dal, at which time I turned the aircraft away from the inbound and instructed him to expedite his climb. The pilot advised he got a TCASII alert after I turned him. The AC95 passed behind and below the B727. I had been previously briefed dal was in a north flow and the B727 departure was a surprise. Coordination did not seem to be complete between dal tower and dal final controller.

Original NASA ASRS Text

Title: CTLR WAS UNAWARE OF RWY FLOW CHANGE AT THE ARPT. ACFT X DEPARTED S AT THE SAME TIME ACFT Y WAS LNDG TO THE N. CTLR TRIED TO SEPARATE BOTH ACFT, BUT TO NO AVAIL.

Narrative: A B727 ACFT X DEPARTED LOVE FIELD RWY 13R TO THE S DURING A RWY FLOW CHANGE. THE AC95 ACFT Y WAS ON FINAL TO RWY 31R AT 2500 FT. THE B727 DIDN'T CALL ME UNTIL 2-3 MI SE OF DAL, AT WHICH TIME I TURNED THE ACFT AWAY FROM THE INBOUND AND INSTRUCTED HIM TO EXPEDITE HIS CLB. THE PLT ADVISED HE GOT A TCASII ALERT AFTER I TURNED HIM. THE AC95 PASSED BEHIND AND BELOW THE B727. I HAD BEEN PREVIOUSLY BRIEFED DAL WAS IN A N FLOW AND THE B727 DEP WAS A SURPRISE. COORD DID NOT SEEM TO BE COMPLETE BTWN DAL TWR AND DAL FINAL CTLR.

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.