MD80 departing dfw receives TCAS TA on crossing traffic 1500 ft above.

Attributes
ACN	691542
Time
Date	200603
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Route In Use	departure sid : nobly2
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zfw.artcc
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	691542
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe
Independent Detector	aircraft equipment : tcas
Resolutory Action	none taken : anomaly accepted
Miss Distance	vertical : 1500
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

While on the nobly 2 departure out of dfw and prior to the turn at the cuzen intersection; we received a TA alert. I had the autoplt engaged and noted that we were on centerline for the departure. Then; I noted the bearing and altitude for the alerted traffic at 11 O'clock position and 1500 ft above. I looked through my eyebrow window to see a cpr type learjet with winglets pass overhead on a northwesterly heading. I was alarmed because we had no ATC warning about the traffic or a lower leveloff altitude assigned other than the 10000 ft on the departure; as one would expect; if there were an ATC awareness of such crossing traffic. The departure frequency was very busy and we had not been able to check in with the departure controller prior to this event due to the volume of transmission by other aircraft to the departure controller. I am concerned about the potential for a midair with this type of scenario on the RNAV departure. In the past; I have had instructions to level at 6000 ft for such a similar situation on this particular departure.

Original NASA ASRS Text

Title: MD80 DEPARTING DFW RECEIVES TCAS TA ON XING TFC 1500 FT ABOVE.

Narrative: WHILE ON THE NOBLY 2 DEP OUT OF DFW AND PRIOR TO THE TURN AT THE CUZEN INTXN; WE RECEIVED A TA ALERT. I HAD THE AUTOPLT ENGAGED AND NOTED THAT WE WERE ON CTRLINE FOR THE DEP. THEN; I NOTED THE BEARING AND ALT FOR THE ALERTED TFC AT 11 O'CLOCK POS AND 1500 FT ABOVE. I LOOKED THROUGH MY EYEBROW WINDOW TO SEE A CPR TYPE LEARJET WITH WINGLETS PASS OVERHEAD ON A NORTHWESTERLY HDG. I WAS ALARMED BECAUSE WE HAD NO ATC WARNING ABOUT THE TFC OR A LOWER LEVELOFF ALT ASSIGNED OTHER THAN THE 10000 FT ON THE DEP; AS ONE WOULD EXPECT; IF THERE WERE AN ATC AWARENESS OF SUCH XING TFC. THE DEP FREQ WAS VERY BUSY AND WE HAD NOT BEEN ABLE TO CHK IN WITH THE DEP CTLR PRIOR TO THIS EVENT DUE TO THE VOLUME OF XMISSION BY OTHER ACFT TO THE DEP CTLR. I AM CONCERNED ABOUT THE POTENTIAL FOR A MIDAIR WITH THIS TYPE OF SCENARIO ON THE RNAV DEP. IN THE PAST; I HAVE HAD INSTRUCTIONS TO LEVEL AT 6000 FT FOR SUCH A SIMILAR SITUATION ON THIS PARTICULAR DEP.

Data retrieved from NASA's ASRS site as of January 2009 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.