A B727 flight crew received a TCASII RA on radar vector departure from lga.

Attributes
ACN	443779
Time
Date	199907
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	agl single value : 1000
Environment
Light	Night
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial
Route In Use	departure : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : lga.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	443779
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	443785
Events
Anomaly	conflict : nmac
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb other other : 3
Resolutory Action	flight crew : took evasive action
Miss Distance	vertical : 200
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Our amended takeoff instructions were: left turn to 070 degrees, climb and maintain 5000 ft for radar vectors to white intersection. After takeoff, in the turn at about 1000 ft, we received an RA 'climb.' we responded to the RA and about 3 seconds later received an RA 'behind' from TCASII. We reported the RA to lga departure. They said, 'didn't the tower tell you about that traffic?' the only indications we received from TCASII. Supplemental information from acn 443777: the display indicated a target 200 ft below us.

Original NASA ASRS Text

Title: A B727 FLC RECEIVED A TCASII RA ON RADAR VECTOR DEP FROM LGA.

Narrative: OUR AMENDED TKOF INSTRUCTIONS WERE: L TURN TO 070 DEGS, CLB AND MAINTAIN 5000 FT FOR RADAR VECTORS TO WHITE INTXN. AFTER TKOF, IN THE TURN AT ABOUT 1000 FT, WE RECEIVED AN RA 'CLB.' WE RESPONDED TO THE RA AND ABOUT 3 SECONDS LATER RECEIVED AN RA 'BEHIND' FROM TCASII. WE RPTED THE RA TO LGA DEP. THEY SAID, 'DIDN'T THE TWR TELL YOU ABOUT THAT TFC?' THE ONLY INDICATIONS WE RECEIVED FROM TCASII. SUPPLEMENTAL INFO FROM ACN 443777: THE DISPLAY INDICATED A TARGET 200 FT BELOW US.

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.