An AT72 first officer reports receiving a TCASII RA while on the jacky 3 departure out of dfw. The conflicting traffic was just inside the class B airspace near the northwest boundary. The flight crew followed the TCASII RA command to climb, and the departure controller issued a climb clearance.

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Attributes
ACN	352354
Time
Date	199611
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : fuz airport : dfw
State Reference	TX
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	ATR 72
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure other departure sid : sid
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp
Experience	flight time last 90 days : 185 flight time total : 2665 flight time type : 452
ASRS Report	352354
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : far other anomaly other other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 500 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

While on radar vectors (dfw jacky 3 departure) crew observed a TCASII return at 12 O'clock, 6 mi, 100 ft above, and descending. Dfw departure provided a TA at approximately 3 mi. TCASII gave TA 'traffic, traffic' at 2 mi with RA 'climb, climb now' at 1 mi. Crew saw traffic at approximately 1.5 mi. Climb was initiated in compliance with RA. As TCASII gave RA, dfw issued climb clearance to 12000 ft. Conflicting aircraft was in class B airspace by 100 ft vertically. Cause of problem: dfw departure procedures which keep turboprop air carrier aircraft at low altitude for extended distances. Turboprop aircraft are consistently vectored out of the side of the class B airspace instead of the top. Turboprop acrs are also vectored underneath the lateral limits of the dfw class B airspace. Correction: use the expanded dfw capacity to climb turboprop air carrier aircraft sooner so that they exit the class B airspace out the top rather than the sides. Will it take a midair collision to correct this? Callback conversation with reporter revealed the following information: the other aircraft was not communicating with dfw, so it was also not cleared into class B airspace. This reporter believes that the entry was inadvertent and that the aircraft was descending into one of the airports below class B in that vicinity.

Original NASA ASRS Text

Title: AN AT72 FO RPTS RECEIVING A TCASII RA WHILE ON THE JACKY 3 DEP OUT OF DFW. THE CONFLICTING TFC WAS JUST INSIDE THE CLASS B AIRSPACE NEAR THE NW BOUNDARY. THE FLC FOLLOWED THE TCASII RA COMMAND TO CLB, AND THE DEP CTLR ISSUED A CLB CLRNC.

Narrative: WHILE ON RADAR VECTORS (DFW JACKY 3 DEP) CREW OBSERVED A TCASII RETURN AT 12 O'CLOCK, 6 MI, 100 FT ABOVE, AND DSNDING. DFW DEP PROVIDED A TA AT APPROX 3 MI. TCASII GAVE TA 'TFC, TFC' AT 2 MI WITH RA 'CLB, CLB NOW' AT 1 MI. CREW SAW TFC AT APPROX 1.5 MI. CLB WAS INITIATED IN COMPLIANCE WITH RA. AS TCASII GAVE RA, DFW ISSUED CLB CLRNC TO 12000 FT. CONFLICTING ACFT WAS IN CLASS B AIRSPACE BY 100 FT VERTLY. CAUSE OF PROB: DFW DEP PROCS WHICH KEEP TURBOPROP ACR ACFT AT LOW ALT FOR EXTENDED DISTANCES. TURBOPROP ACFT ARE CONSISTENTLY VECTORED OUT OF THE SIDE OF THE CLASS B AIRSPACE INSTEAD OF THE TOP. TURBOPROP ACRS ARE ALSO VECTORED UNDERNEATH THE LATERAL LIMITS OF THE DFW CLASS B AIRSPACE. CORRECTION: USE THE EXPANDED DFW CAPACITY TO CLB TURBOPROP ACR ACFT SOONER SO THAT THEY EXIT THE CLASS B AIRSPACE OUT THE TOP RATHER THAN THE SIDES. WILL IT TAKE A MIDAIR COLLISION TO CORRECT THIS? CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE OTHER ACFT WAS NOT COMMUNICATING WITH DFW, SO IT WAS ALSO NOT CLRED INTO CLASS B AIRSPACE. THIS RPTR BELIEVES THAT THE ENTRY WAS INADVERTENT AND THAT THE ACFT WAS DSNDING INTO ONE OF THE ARPTS BELOW CLASS B IN THAT VICINITY.

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.