Air carrier FK10 flight crew on departure climb out, react to TCASII descend command to avoid opposite direction descending traffic. TRACON departure controller cannot answer questions about conflicting traffic and changes air carrier to ZME. ZME controller advises he had coordination descent with hsv the conflicting inbound traffic.

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Attributes
ACN	407768
Time
Date	199807
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : msl
State Reference	AL
Altitude	msl bound lower : 9000 msl bound upper : 10000
Aircraft 1
Controlling Facilities	artcc : zme tracon : hsv
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other descent other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	407768
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	407769
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 10500 vertical : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Given clearance to climb to 10000 ft and right turn on course. Passing 9000 ft, TCASII alert goes off telling us to descend. After starting descent, traffic was spotted, also in a descent. Traffic passed off to our right about 1.5-2 mi away. When we asked departure control what had happened he sounded confused and told us to contact ZME. ZME told us he had requested a descent of the other plane through hsv arrival and given clearance to do so. He had given the other plane clearance to descend to 6000 ft. Thanks to TCASII, we never got too close to each other. Supplemental information from acn 407769: ZME explained he had observed the conflict on his radar. ZME said he had been given clearance by hsv approach to allow the aircraft to descend out of 10000 ft.

Original NASA ASRS Text

Title: ACR FK10 FLC ON DEP CLBOUT, REACT TO TCASII DSND COMMAND TO AVOID OPPOSITE DIRECTION DSNDING TFC. TRACON DEP CTLR CANNOT ANSWER QUESTIONS ABOUT CONFLICTING TFC AND CHANGES ACR TO ZME. ZME CTLR ADVISES HE HAD COORD DSCNT WITH HSV THE CONFLICTING INBOUND TFC.

Narrative: GIVEN CLRNC TO CLB TO 10000 FT AND R TURN ON COURSE. PASSING 9000 FT, TCASII ALERT GOES OFF TELLING US TO DSND. AFTER STARTING DSCNT, TFC WAS SPOTTED, ALSO IN A DSCNT. TFC PASSED OFF TO OUR R ABOUT 1.5-2 MI AWAY. WHEN WE ASKED DEP CTL WHAT HAD HAPPENED HE SOUNDED CONFUSED AND TOLD US TO CONTACT ZME. ZME TOLD US HE HAD REQUESTED A DSCNT OF THE OTHER PLANE THROUGH HSV ARR AND GIVEN CLRNC TO DO SO. HE HAD GIVEN THE OTHER PLANE CLRNC TO DSND TO 6000 FT. THANKS TO TCASII, WE NEVER GOT TOO CLOSE TO EACH OTHER. SUPPLEMENTAL INFO FROM ACN 407769: ZME EXPLAINED HE HAD OBSERVED THE CONFLICT ON HIS RADAR. ZME SAID HE HAD BEEN GIVEN CLRNC BY HSV APCH TO ALLOW THE ACFT TO DSND OUT OF 10000 FT.

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.