Commuter light transport received a TCASII in dfw vicinity.

Attributes
ACN	241724
Time
Date	199305
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bpr
State Reference	TX
Altitude	msl bound lower : 7900 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument
Experience	flight time last 90 days : 260 flight time total : 11000 flight time type : 5700
ASRS Report	241724
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While cruising at 8000 ft center called us to check our altimeter because he showed us 100 ft low. Altimeter setting was ok and we showed to be at 8000 ft. We noticed some traffic around us on our TCASII display. Nothing unusual. A couple mins later we got an RA of 'climb, traffic' (pop-up traffic?). First officer climbed plus or minus 300-400 ft and the TCASII stopped yelling at us. I advised center about our TCASII climb. No response! Again, I told center about TCASII climb. This time we got a response. Later we were cleared to 6000 ft. We never saw the traffic. At 6000 ft I called center to check our altitude readout. He answered: 'I show 6200 ft.' seconds later we were handed off to approach control and again I asked for an altitude readout. '6000 ft' approach control told us. Was center trying to cover up that traffic or what? We'll never know I guess.

Original NASA ASRS Text

Title: COMMUTER LTT RECEIVED A TCASII IN DFW VICINITY.

Narrative: WHILE CRUISING AT 8000 FT CTR CALLED US TO CHK OUR ALTIMETER BECAUSE HE SHOWED US 100 FT LOW. ALTIMETER SETTING WAS OK AND WE SHOWED TO BE AT 8000 FT. WE NOTICED SOME TFC AROUND US ON OUR TCASII DISPLAY. NOTHING UNUSUAL. A COUPLE MINS LATER WE GOT AN RA OF 'CLB, TFC' (POP-UP TFC?). FO CLBED PLUS OR MINUS 300-400 FT AND THE TCASII STOPPED YELLING AT US. I ADVISED CTR ABOUT OUR TCASII CLB. NO RESPONSE! AGAIN, I TOLD CTR ABOUT TCASII CLB. THIS TIME WE GOT A RESPONSE. LATER WE WERE CLRED TO 6000 FT. WE NEVER SAW THE TFC. AT 6000 FT I CALLED CTR TO CHK OUR ALT READOUT. HE ANSWERED: 'I SHOW 6200 FT.' SECONDS LATER WE WERE HANDED OFF TO APCH CTL AND AGAIN I ASKED FOR AN ALT READOUT. '6000 FT' APCH CTL TOLD US. WAS CTR TRYING TO COVER UP THAT TFC OR WHAT? WE'LL NEVER KNOW I GUESS.

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.