Medium large transport received a TCASII TA on an light transport departure, but no RA was received. Approach controller turned the medium large transport when the light transport climbed through medium large transport altitude with less than standard separation.

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Attributes
ACN	184542
Time
Date	199107
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : scy airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zhu
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	arrival other arrival star : star enroute : on vectors enroute airway : dfw
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 3900 flight time type : 220
ASRS Report	184542
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe non adherence : clearance non adherence : required legal separation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While at 11000 ft 250 KTS on the scurry arrival to dfw, we received an audio TCASII TA. The TCASII radar screen indicated a round yellow target at 12 O'clock, 2100 ft below us, climbing. The advisory ceased, then returned, this time at 12 O'clock, 900 ft below us, climbing. The advisory went away, then returned, this time at 12 O'clock, 200 ft below us, climbing. Dfw approach control simultaneously told us to turn right immediately 30 degree. The first officer disconnected the autoplt, and executed the maneuver. According to the controller, the target was an light transport that had busted his climb restriction. As best as we could determine, our controller was not working this aircraft. We never saw the aircraft, and never got an RA. The first officer told me later, the TCASII indicated the target flew through our altitude before it disappeared off of the scope.

Original NASA ASRS Text

Title: MLG RECEIVED A TCASII TA ON AN LTT DEP, BUT NO RA WAS RECEIVED. APCH CTLR TURNED THE MLG WHEN THE LTT CLBED THROUGH MLG ALT WITH LTSS.

Narrative: WHILE AT 11000 FT 250 KTS ON THE SCURRY ARR TO DFW, WE RECEIVED AN AUDIO TCASII TA. THE TCASII RADAR SCREEN INDICATED A ROUND YELLOW TARGET AT 12 O'CLOCK, 2100 FT BELOW US, CLBING. THE ADVISORY CEASED, THEN RETURNED, THIS TIME AT 12 O'CLOCK, 900 FT BELOW US, CLBING. THE ADVISORY WENT AWAY, THEN RETURNED, THIS TIME AT 12 O'CLOCK, 200 FT BELOW US, CLBING. DFW APCH CTL SIMULTANEOUSLY TOLD US TO TURN R IMMEDIATELY 30 DEG. THE FO DISCONNECTED THE AUTOPLT, AND EXECUTED THE MANEUVER. ACCORDING TO THE CTLR, THE TARGET WAS AN LTT THAT HAD BUSTED HIS CLB RESTRICTION. AS BEST AS WE COULD DETERMINE, OUR CTLR WAS NOT WORKING THIS ACFT. WE NEVER SAW THE ACFT, AND NEVER GOT AN RA. THE FO TOLD ME LATER, THE TCASII INDICATED THE TARGET FLEW THROUGH OUR ALT BEFORE IT DISAPPEARED OFF OF THE SCOPE.

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.