MD80 crew had a TCASII RA. Crew followed RA guidance.

Attributes
ACN	413380
Time
Date	199809
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cqy
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 11800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	413380
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	413381
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Received RA while on the cedar creek arrival. Traffic was climbing from below out of dal. Received RA to climb at a minimum of 1200 FPM. Climbed to approximately 11800 ft whereupon we received a clear of conflict advisory. We descended back to 11000 ft and continued the arrival without further incident. Approach control was advised of our response to the RA, and informed when we had descended back to 11000 ft. Supplemental information from acn 413381: on the CQY2 arrival to dfw, was given TA for a learjet at 1 O'clock climbing to 10000 ft. We sighted an aircraft after the TA and then received an RA to climb as the traffic seemed to climb through 10100 ft. We followed the RA and advised approach of our actions. The traffic climbed to at least 10500 ft as we leveled at 11800 ft. Clear of conflict, we descended back to 11000 ft and continued the arrival. ATC did not advise us of any conflict caused by the RA.

Original NASA ASRS Text

Title: MD80 CREW HAD A TCASII RA. CREW FOLLOWED RA GUIDANCE.

Narrative: RECEIVED RA WHILE ON THE CEDAR CREEK ARR. TFC WAS CLBING FROM BELOW OUT OF DAL. RECEIVED RA TO CLB AT A MINIMUM OF 1200 FPM. CLBED TO APPROX 11800 FT WHEREUPON WE RECEIVED A CLR OF CONFLICT ADVISORY. WE DSNDED BACK TO 11000 FT AND CONTINUED THE ARR WITHOUT FURTHER INCIDENT. APCH CTL WAS ADVISED OF OUR RESPONSE TO THE RA, AND INFORMED WHEN WE HAD DSNDED BACK TO 11000 FT. SUPPLEMENTAL INFO FROM ACN 413381: ON THE CQY2 ARR TO DFW, WAS GIVEN TA FOR A LEARJET AT 1 O'CLOCK CLBING TO 10000 FT. WE SIGHTED AN ACFT AFTER THE TA AND THEN RECEIVED AN RA TO CLB AS THE TFC SEEMED TO CLB THROUGH 10100 FT. WE FOLLOWED THE RA AND ADVISED APCH OF OUR ACTIONS. THE TFC CLBED TO AT LEAST 10500 FT AS WE LEVELED AT 11800 FT. CLR OF CONFLICT, WE DSNDED BACK TO 11000 FT AND CONTINUED THE ARR. ATC DID NOT ADVISE US OF ANY CONFLICT CAUSED BY THE RA.

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.