Fokker 100 on ukw STAR 11000 ft, traffic climbing pointed out by controller. Traffic sighted at the same time had TCASII TA and RA. Made a slow climb to 11500 ft where warning ceased.

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Attributes
ACN	363310
Time
Date	199703
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 11500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	363310
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

While on ukw arrival approach informed us of climbing traffic at 10-11 O'clock. Low climbing traffic appeared to be spotted by crew and subsequent TA to RA commands, I responded by turning off the autoplt and started smooth climb in accordance with TA command, no traffic was above and at about 11500 ft commands ceased, informed approach immediately and returned to altitude of 11000 ft. Approach reported no problems as a result of our actions. My understanding was the software in the TCASII system had been modified for the climbs in the dfw area. I have not had an RA in the dfw area for several yrs. Aircraft involved was an MD88.

Original NASA ASRS Text

Title: FOKKER 100 ON UKW STAR 11000 FT, TFC CLBING POINTED OUT BY CTLR. TFC SIGHTED AT THE SAME TIME HAD TCASII TA AND RA. MADE A SLOW CLB TO 11500 FT WHERE WARNING CEASED.

Narrative: WHILE ON UKW ARR APCH INFORMED US OF CLBING TFC AT 10-11 O'CLOCK. LOW CLBING TFC APPEARED TO BE SPOTTED BY CREW AND SUBSEQUENT TA TO RA COMMANDS, I RESPONDED BY TURNING OFF THE AUTOPLT AND STARTED SMOOTH CLB IN ACCORDANCE WITH TA COMMAND, NO TFC WAS ABOVE AND AT ABOUT 11500 FT COMMANDS CEASED, INFORMED APCH IMMEDIATELY AND RETURNED TO ALT OF 11000 FT. APCH RPTED NO PROBS AS A RESULT OF OUR ACTIONS. MY UNDERSTANDING WAS THE SOFTWARE IN THE TCASII SYS HAD BEEN MODIFIED FOR THE CLBS IN THE DFW AREA. I HAVE NOT HAD AN RA IN THE DFW AREA FOR SEVERAL YRS. ACFT INVOLVED WAS AN MD88.

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.