Air carrier medium large transport altitude deviation excursion from clearance altitude in response ...

Attributes
ACN	189417
Time
Date	199109
Day	Mon
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 tower : dsm
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other descent other
Route In Use	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 180
ASRS Report	189417
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

While inbound on acton arrival at dfw, TCASII had traffic at our 1:30 below us and climbing. We saw the aircraft and ATC pointed him out to us. TCASII went from a TA to an RA 'climb command'. We climbed and called approach control and informed him of our climb. At 500 ft above our cleared altitude (11000 TCASII informed us 'clear of traffic' and we descended back to 11000 MSL. TCASII works but wouldn't it be more affective if we could flag visually idented traffic and take them out of the TCASII RA mode -- just give TA's on these targets.

Original NASA ASRS Text

Title: ACR MLG ALT DEV EXCURSION FROM CLRNC ALT IN RESPONSE TO TCASII RA.

Narrative: WHILE INBOUND ON ACTON ARR AT DFW, TCASII HAD TFC AT OUR 1:30 BELOW US AND CLBING. WE SAW THE ACFT AND ATC POINTED HIM OUT TO US. TCASII WENT FROM A TA TO AN RA 'CLB COMMAND'. WE CLBED AND CALLED APCH CTL AND INFORMED HIM OF OUR CLB. AT 500 FT ABOVE OUR CLRED ALT (11000 TCASII INFORMED US 'CLR OF TFC' AND WE DSNDED BACK TO 11000 MSL. TCASII WORKS BUT WOULDN'T IT BE MORE AFFECTIVE IF WE COULD FLAG VISUALLY IDENTED TFC AND TAKE THEM OUT OF THE TCASII RA MODE -- JUST GIVE TA'S ON THESE TARGETS.

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.

Air carrier medium large transport altitude deviation excursion from clearance altitude in response to TCASII RA.