Altitude deviation altitude excursion after TCASII RA in air carrier medium large transport.

Attributes
ACN	180456
Time
Date	199106
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : aqn airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 12100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	arrival other arrival star : star enroute airway : dfw
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 12250 flight time type : 100
ASRS Report	180456
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 120 flight time total : 5000 flight time type : 50
ASRS Report	180457
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : far non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 5000 vertical : 1700
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Level 11000' on acton 2 arrival to dfw. Traffic given by approach -- 12 O'clock climbing to 10 -- saw and rogered traffic. TCASII gave TA alert. Screen showed he was 9500' and climbing. When traffic was at 10 O'clock and 1 mi and separating we got an RA with instructions by TCASII to 'climb, climb.' I pulled back to put rate of climb in correct position on the ivsi, held it for 10 seconds. TCASII said, 'clear of conflict.' our aircraft had cbled to 12100'. With the words, 'clear of conflict,' I immediately descended back to 11000' and told approach we had a TCASII conflict which he rogered.

Original NASA ASRS Text

Title: ALT DEVIATION ALT EXCURSION AFTER TCASII RA IN ACR MLG.

Narrative: LEVEL 11000' ON ACTON 2 ARR TO DFW. TFC GIVEN BY APCH -- 12 O'CLOCK CLBING TO 10 -- SAW AND ROGERED TFC. TCASII GAVE TA ALERT. SCREEN SHOWED HE WAS 9500' AND CLBING. WHEN TFC WAS AT 10 O'CLOCK AND 1 MI AND SEPARATING WE GOT AN RA WITH INSTRUCTIONS BY TCASII TO 'CLB, CLB.' I PULLED BACK TO PUT RATE OF CLB IN CORRECT POS ON THE IVSI, HELD IT FOR 10 SECS. TCASII SAID, 'CLR OF CONFLICT.' OUR ACFT HAD CBLED TO 12100'. WITH THE WORDS, 'CLR OF CONFLICT,' I IMMEDIATELY DSNDED BACK TO 11000' AND TOLD APCH WE HAD A TCASII CONFLICT WHICH HE ROGERED.

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.