<< >> NASA ASRS Report 390730, January 1998

During descent for approach flight crew of an MD80 climbed in response to a TCASII RA and then returned to assigned after all clear given by TCASII. Reporter did not indicate any advisories given of other traffic by ATC.

Attributes
ACN	390730
Time
Date	199801
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 12000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 14000 flight time type : 300
ASRS Report	390730
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Responded to TCASII RA climb warning. Deviated off assigned altitude by 1000 ft MSL until cleared of conflict. Returned to assigned altitude and heading.

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Original NASA ASRS Text

Title: DURING DSCNT FOR APCH FLC OF AN MD80 CLBED IN RESPONSE TO A TCASII RA AND THEN RETURNED TO ASSIGNED AFTER ALL CLR GIVEN BY TCASII. RPTR DID NOT INDICATE ANY ADVISORIES GIVEN OF OTHER TFC BY ATC.

Narrative: RESPONDED TO TCASII RA CLB WARNING. DEVIATED OFF ASSIGNED ALT BY 1000 FT MSL UNTIL CLRED OF CONFLICT. RETURNED TO ASSIGNED ALT AND HDG.

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.