Carj flight crew initiate evasive maneuver due to same altitude, conflicting PA34 at time of xfer fr...

Attributes
ACN	510094
Time
Date	200104
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : argal
State Reference	NC
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc tracon : rdu.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet CL65, Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	arrival star : argal 5
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : rdu.tracon
Make Model Name	PA-34-200 Seneca I
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 150 flight time total : 5000 flight time type : 2000
ASRS Report	510094
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical non adherence : required legal separation non adherence other
Independent Detector	atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa
Resolutory Action	controller : issued new clearance controller : separated traffic
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 5000 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Airspace Structure
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Inter Facility Coordination Failure

Narrative:

ZDC cleared us to 11000 ft with expect to cross argal intersection at 10000 ft. Center immediately came back and said 'cross argal intersection at 10000 ft, and we will see traffic at 9000 ft (1000 ft below us) at argal.' upon crossing argal, we saw a target approaching our aircraft on TCASII at 10000 ft. Without a deviation we would have possibly been on a collision course. ZDC switched us to rdu approach control where they gave us an immediate hard l-hand turn and the seneca a turn in the opposite direction. We never saw the seneca! Our TCASII did respond appropriately. Rdu approach questioned us as to why we were at 10000 ft and not 11000 ft. We advised him as to our clearance from center to 10000 ft. Approach said they would look into it. I believe the problem arose due to miscom between the center controller and the approach controller. We (the flight crew) are just very happy that we had TCASII and were able to adjust our path for the seneca.

Original NASA ASRS Text

Title: CARJ FLC INITIATE EVASIVE MANEUVER DUE TO SAME ALT, CONFLICTING PA34 AT TIME OF XFER FROM ZDC TO RDU.

Narrative: ZDC CLRED US TO 11000 FT WITH EXPECT TO CROSS ARGAL INTXN AT 10000 FT. CTR IMMEDIATELY CAME BACK AND SAID 'CROSS ARGAL INTXN AT 10000 FT, AND WE WILL SEE TFC AT 9000 FT (1000 FT BELOW US) AT ARGAL.' UPON XING ARGAL, WE SAW A TARGET APCHING OUR ACFT ON TCASII AT 10000 FT. WITHOUT A DEV WE WOULD HAVE POSSIBLY BEEN ON A COLLISION COURSE. ZDC SWITCHED US TO RDU APCH CTL WHERE THEY GAVE US AN IMMEDIATE HARD L-HAND TURN AND THE SENECA A TURN IN THE OPPOSITE DIRECTION. WE NEVER SAW THE SENECA! OUR TCASII DID RESPOND APPROPRIATELY. RDU APCH QUESTIONED US AS TO WHY WE WERE AT 10000 FT AND NOT 11000 FT. WE ADVISED HIM AS TO OUR CLRNC FROM CTR TO 10000 FT. APCH SAID THEY WOULD LOOK INTO IT. I BELIEVE THE PROB AROSE DUE TO MISCOM BTWN THE CTR CTLR AND THE APCH CTLR. WE (THE FLC) ARE JUST VERY HAPPY THAT WE HAD TCASII AND WERE ABLE TO ADJUST OUR PATH FOR THE SENECA.

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.

Carj flight crew initiate evasive maneuver due to same altitude, conflicting PA34 at time of xfer from ZDC to rdu.