Altitude deviation altitude excursion after receiving TCASII RA from unknown VFR traffic in area.

Attributes
ACN	244051
Time
Date	199306
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	msl bound lower : 6000 msl bound upper : 6700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw tower : syr
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : instructional
Make Model Name	Small Aircraft
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11200 flight time type : 7000
ASRS Report	244051
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 400
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

In response to TCASII TA/RA, a climb was initiated from assigned 6000 ft MSL to 6700 ft MSL to avoid VFR traffic.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION AFTER RECEIVING TCASII RA FROM UNKNOWN VFR TFC IN AREA.

Narrative: IN RESPONSE TO TCASII TA/RA, A CLB WAS INITIATED FROM ASSIGNED 6000 FT MSL TO 6700 FT MSL TO AVOID VFR TFC.

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.