An air carrier medium large transport climbed in response to a TCASII command.

Attributes
ACN	262836
Time
Date	199402
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : iow
State Reference	IA
Altitude	msl bound lower : 28000 msl bound upper : 29300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 210 flight time total : 6000 flight time type : 1400
ASRS Report	262836
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 10000 vertical : 1500
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

In response to a TCASII 'RA' while at 28000 ft I disconnected autoplt and began a climb in response to TCASII instructions. The aural 'clear of conflict command was received at 28600 ft and we were able to complete a level off by 29300 ft. The only visual contact with the traffic was its contrail. Ord center was advised of the deviation and we were relcred to FL280.

Original NASA ASRS Text

Title: AN ACR MLG CLBED IN RESPONSE TO A TCASII COMMAND.

Narrative: IN RESPONSE TO A TCASII 'RA' WHILE AT 28000 FT I DISCONNECTED AUTOPLT AND BEGAN A CLB IN RESPONSE TO TCASII INSTRUCTIONS. THE AURAL 'CLR OF CONFLICT COMMAND WAS RECEIVED AT 28600 FT AND WE WERE ABLE TO COMPLETE A LEVEL OFF BY 29300 FT. THE ONLY VISUAL CONTACT WITH THE TFC WAS ITS CONTRAIL. ORD CTR WAS ADVISED OF THE DEV AND WE WERE RELCRED TO FL280.

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.