Potential conflict resolved by flight crew response to TCASII RA.

Attributes
ACN	228183
Time
Date	199212
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : clt
State Reference	NC
Altitude	msl bound lower : 11000 msl bound upper : 12000
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	climbout : intermediate altitude
Route In Use	enroute : on vectors enroute airway : clt
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 225 flight time total : 18000 flight time type : 2700
ASRS Report	228183
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 18000 flight time type : 5000
ASRS Report	228169
Events
Anomaly	altitude deviation : undershoot conflict : airborne less severe non adherence : far non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 500
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation

Narrative:

During climb out, ATC issued TA's for a VFR traffic incorrectly at 3 O'clock when in fact, the traffic appeared on TCASII at 10 O'clock. A TA was issued by TCASII, followed by an RA. At the time, our climb out was at 2500 FPM plus when TCASII commanded an 1800 FPM descent, requiring an aggressive noseover. The VFR traffic was never visually observed. ATC should not vector transport category aircraft so close to VFR traffic because after RA's are triggered, requiring aggressive action.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT RESOLVED BY FLC RESPONSE TO TCASII RA.

Narrative: DURING CLBOUT, ATC ISSUED TA'S FOR A VFR TFC INCORRECTLY AT 3 O'CLOCK WHEN IN FACT, THE TFC APPEARED ON TCASII AT 10 O'CLOCK. A TA WAS ISSUED BY TCASII, FOLLOWED BY AN RA. AT THE TIME, OUR CLBOUT WAS AT 2500 FPM PLUS WHEN TCASII COMMANDED AN 1800 FPM DSCNT, REQUIRING AN AGGRESSIVE NOSEOVER. THE VFR TFC WAS NEVER VISUALLY OBSERVED. ATC SHOULD NOT VECTOR TRANSPORT CATEGORY ACFT SO CLOSE TO VFR TFC BECAUSE AFTER RA'S ARE TRIGGERED, REQUIRING AGGRESSIVE ACTION.

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.