Departure crossed over top of landing medium large transport rolling out on intersecting runways.

Attributes
ACN	104817
Time
Date	198902
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : aus
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : aus artcc : zau
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Route In Use	departure other
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	landing other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 5 controller radar : 10
ASRS Report	104817
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	conflict : ground critical non adherence : required legal separation non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	faa : investigated
Miss Distance	horizontal : 500 vertical : 100
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error other

Narrative:

Aircraft #1 was in position on an intersecting runway waiting for an medium large transport to clear onto a taxiway. Aircraft #2 was on final approximately 2.5 mi out to the other runway. Aircraft #1 was cleared for takeoff, then questioned the departure heading and then understood. The controller turned back to see aircraft #2 on a mi final then turned to see the position of aircraft #1 aircraft #1 had commenced departure roll and in the controller's judgement had the takeoff clearance been cancelled the 2 aircraft would have barely missed at the runway intersection. Aircraft #2 was rolling out on the other runway when aircraft #1 was airborne and passed over aircraft #2 about 100' vertical and 500' horizontal.

Original NASA ASRS Text

Title: DEP CROSSED OVER TOP OF LNDG MLG ROLLING OUT ON INTERSECTING RWYS.

Narrative: ACFT #1 WAS IN POS ON AN INTERSECTING RWY WAITING FOR AN MLG TO CLR ONTO A TXWY. ACFT #2 WAS ON FINAL APPROX 2.5 MI OUT TO THE OTHER RWY. ACFT #1 WAS CLRED FOR TKOF, THEN QUESTIONED THE DEP HDG AND THEN UNDERSTOOD. THE CTLR TURNED BACK TO SEE ACFT #2 ON A MI FINAL THEN TURNED TO SEE THE POS OF ACFT #1 ACFT #1 HAD COMMENCED DEP ROLL AND IN THE CTLR'S JUDGEMENT HAD THE TKOF CLRNC BEEN CANCELLED THE 2 ACFT WOULD HAVE BARELY MISSED AT THE RWY INTXN. ACFT #2 WAS ROLLING OUT ON THE OTHER RWY WHEN ACFT #1 WAS AIRBORNE AND PASSED OVER ACFT #2 ABOUT 100' VERT AND 500' HORIZ.

Data retrieved from NASA's ASRS site as of August 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.