C650 at FL270 with ZJX experienced TCASII RA event during ATC issued vectors.

Attributes
ACN	605416
Time
Date	200401
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : ilm.vortac
State Reference	NC
Altitude	msl bound lower : 27000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	general aviation : corporate
Make Model Name	Citation III, VI, VII
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : enroute altitude change
Route In Use	enroute : on vectors enroute airway : j174.airway
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zjx.artcc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 90 flight time total : 6600 flight time type : 2200
ASRS Report	605416
Person 2
Affiliation	other
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	horizontal : 60000 vertical : 500
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

15 mins into our flight, we got a TCASII RA. We were northbound on J174 north of ilm VOR. ATC gave us a 'left turn 15 degrees, climb and maintain FL290.' as we climbed through FL274 our TCASII called traffic, followed by 'descend, descend.' I disconnected the autoplt and followed the TCASII commands. After notifying ATC, we were told to level off at FL270. About 5 seconds after the RA, we heard aircraft Y call out an RA. Aircraft Y said they were climbing. We did have the traffic in sight. It appeared that ATC had us climbing to FL290 and aircraft Y descending to FL280. When the TCASII called out our traffic we had them in sight at our 2 O'clock position. It appeared that we were on a head-on collision. We are thankful that the TCASII did its job. I am not sure why ATC put us on a vector. There was a lot of traffic in the area at the time. Hopefully, this does not happen too often.

Original NASA ASRS Text

Title: C650 AT FL270 WITH ZJX EXPERIENCED TCASII RA EVENT DURING ATC ISSUED VECTORS.

Narrative: 15 MINS INTO OUR FLT, WE GOT A TCASII RA. WE WERE NBOUND ON J174 N OF ILM VOR. ATC GAVE US A 'L TURN 15 DEGS, CLB AND MAINTAIN FL290.' AS WE CLBED THROUGH FL274 OUR TCASII CALLED TFC, FOLLOWED BY 'DSND, DSND.' I DISCONNECTED THE AUTOPLT AND FOLLOWED THE TCASII COMMANDS. AFTER NOTIFYING ATC, WE WERE TOLD TO LEVEL OFF AT FL270. ABOUT 5 SECONDS AFTER THE RA, WE HEARD ACFT Y CALL OUT AN RA. ACFT Y SAID THEY WERE CLBING. WE DID HAVE THE TFC IN SIGHT. IT APPEARED THAT ATC HAD US CLBING TO FL290 AND ACFT Y DSNDING TO FL280. WHEN THE TCASII CALLED OUT OUR TFC WE HAD THEM IN SIGHT AT OUR 2 O'CLOCK POS. IT APPEARED THAT WE WERE ON A HEAD-ON COLLISION. WE ARE THANKFUL THAT THE TCASII DID ITS JOB. I AM NOT SURE WHY ATC PUT US ON A VECTOR. THERE WAS A LOT OF TFC IN THE AREA AT THE TIME. HOPEFULLY, THIS DOES NOT HAPPEN TOO OFTEN.

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.