Near midair collision avoided by TCASII RA commanding evasive action climb.

Attributes
ACN	233447
Time
Date	199302
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : aqn airport : dfw
State Reference	TX
Altitude	msl bound lower : 12000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw tracon : dfw
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star enroute : direct enroute airway : dfw
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	climbout : intermediate altitude cruise other descent other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 12000 flight time type : 1400
ASRS Report	233447
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At cruise, FL210, cleared direct aqn, acton 2 arrival, cross halen intersection at 11000 ft. Controller advised us there was an unidented aircraft over the aqn VORTAC, climbing sometimes higher than 14000 ft. We idented the aircraft on our TCASII and advised center. Controller told us to watch out and be careful and cleared us to approach control frequency. We checked in with regional approach and told the controller of the situation. He seemed unaware. The TCASII target came closer and closer at a rapid rate. TCASII then commanded a 3500 FPM climb. I broke off the descent immediately and began a 4000 FPM climb. The last look at our TCASII had the target under us at 400 ft. We told approach we had a TCASII resolution and were climbing. Little or no concern by approach control, just told to continue our descent when able. We never had a visual contact. Private pilots certainly have their right to be in the sky too. However, along with that right comes responsibility. They must be made to become cognizant of where they are flying or hundreds of lives will be lost. Thank god for TCASII. At least we have a fighting chance against the ignorant.

Original NASA ASRS Text

Title: NMAC AVOIDED BY TCASII RA COMMANDING EVASIVE ACTION CLB.

Narrative: AT CRUISE, FL210, CLRED DIRECT AQN, ACTON 2 ARR, CROSS HALEN INTXN AT 11000 FT. CTLR ADVISED US THERE WAS AN UNIDENTED ACFT OVER THE AQN VORTAC, CLBING SOMETIMES HIGHER THAN 14000 FT. WE IDENTED THE ACFT ON OUR TCASII AND ADVISED CTR. CTLR TOLD US TO WATCH OUT AND BE CAREFUL AND CLRED US TO APCH CTL FREQ. WE CHKED IN WITH REGIONAL APCH AND TOLD THE CTLR OF THE SIT. HE SEEMED UNAWARE. THE TCASII TARGET CAME CLOSER AND CLOSER AT A RAPID RATE. TCASII THEN COMMANDED A 3500 FPM CLB. I BROKE OFF THE DSCNT IMMEDIATELY AND BEGAN A 4000 FPM CLB. THE LAST LOOK AT OUR TCASII HAD THE TARGET UNDER US AT 400 FT. WE TOLD APCH WE HAD A TCASII RESOLUTION AND WERE CLBING. LITTLE OR NO CONCERN BY APCH CTL, JUST TOLD TO CONTINUE OUR DSCNT WHEN ABLE. WE NEVER HAD A VISUAL CONTACT. PRIVATE PLTS CERTAINLY HAVE THEIR RIGHT TO BE IN THE SKY TOO. HOWEVER, ALONG WITH THAT RIGHT COMES RESPONSIBILITY. THEY MUST BE MADE TO BECOME COGNIZANT OF WHERE THEY ARE FLYING OR HUNDREDS OF LIVES WILL BE LOST. THANK GOD FOR TCASII. AT LEAST WE HAVE A FIGHTING CHANCE AGAINST THE IGNORANT.

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.