Potential conflict alerted to flight crew by TCASII TA.

Attributes
ACN	204003
Time
Date	199202
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mia
State Reference	FL
Altitude	msl bound lower : 9000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mia
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 130 flight time total : 6000 flight time type : 130
ASRS Report	204003
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : far non adherence : required legal separation other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : exited adverse environment flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 10500 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

On vectors from miami approach heading 190 degrees, 10000 ft at 250 KTS, I monitored on TCASII an aircraft converging from my 4 O'clock position as he descended through 12000 ft. Miami issued us an immediate left turn to 090 degrees and requested a rapid descent to '10000.' the TCASII was directing us to climb! I had visual contact with the traffic and was informing the captain to follow the controller's directions. With the TCASII, controller, and myself all issuing conflicting actions, the captain was understandably confused. We descended to 9000 ft after clarification from miami. The conflicting traffic passed within 1 1/2-2 mi and approximately 400 ft vertical separation.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT ALERTED TO FLC BY TCASII TA.

Narrative: ON VECTORS FROM MIAMI APCH HDG 190 DEGS, 10000 FT AT 250 KTS, I MONITORED ON TCASII AN ACFT CONVERGING FROM MY 4 O'CLOCK POS AS HE DSNDED THROUGH 12000 FT. MIAMI ISSUED US AN IMMEDIATE L TURN TO 090 DEGS AND REQUESTED A RAPID DSCNT TO '10000.' THE TCASII WAS DIRECTING US TO CLB! I HAD VISUAL CONTACT WITH THE TFC AND WAS INFORMING THE CAPT TO FOLLOW THE CTLR'S DIRECTIONS. WITH THE TCASII, CTLR, AND MYSELF ALL ISSUING CONFLICTING ACTIONS, THE CAPT WAS UNDERSTANDABLY CONFUSED. WE DSNDED TO 9000 FT AFTER CLARIFICATION FROM MIAMI. THE CONFLICTING TFC PASSED WITHIN 1 1/2-2 MI AND APPROX 400 FT VERT SEPARATION.

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.