Altitude deviation account TCASII RA.

Attributes
ACN	176172
Time
Date	199104
Day	Sat
Local Time Of Day	0001 To 0600
Place
Locale Reference	atc facility : dxo airport : dtw
State Reference	MI
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : dtw tower : atl
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other descent : approach
Route In Use	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : private pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 5500 flight time type : 1400
ASRS Report	176172
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 10000
ASRS Report	176058
Events
Anomaly	altitude deviation : excursion from assigned altitude
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 5000 vertical : 1000
Supplementary
Air Traffic Incident	other

Narrative:

Inbound to dxo from polar intersection at 11000' MSL assigned, TCAS issued a TA followed by an RA and climb command. We climbed and deviated approximately 500' from assigned altitude. In response to the TCAS RA, approach control was advised. Returned to assigned altitude after TCAS 'clear of conflict' issued.

Original NASA ASRS Text

Title: ALT DEVIATION ACCOUNT TCASII RA.

Narrative: INBND TO DXO FROM POLAR INTXN AT 11000' MSL ASSIGNED, TCAS ISSUED A TA FOLLOWED BY AN RA AND CLB COMMAND. WE CLBED AND DEVIATED APPROX 500' FROM ASSIGNED ALT. IN RESPONSE TO THE TCAS RA, APCH CTL WAS ADVISED. RETURNED TO ASSIGNED ALT AFTER TCAS 'CLR OF CONFLICT' ISSUED.

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.