B737 crew had TCASII RA in N-90 class B.

Attributes
ACN	485193
Time
Date	200009
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : lga.vor
State Reference	NY
Altitude	agl bound lower : 3000 agl bound upper : 41 agl single value : 40 msl single value : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : n90.tracon
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	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 151 flight time total : 19830 flight time type : 4395
ASRS Report	485193
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 200 flight time total : 4000 flight time type : 700
ASRS Report	485030
Events
Anomaly	conflict : airborne critical non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Approximately 10 NM south of lga, descending out of 6000 ft for 5000 ft. Approaching 5000 ft lga approach cleared us to 3000 ft with a good rate to 3000 ft. Meanwhile our TCASII indicated a TA below and to our left rear, so we slowed our rate of descent. At this time the air carrier told ATC they have us at their 12 O'clock position and getting close. We slowed our rate of descent more even though ATC said, 'I need a good rate to 3000 ft.' appeared ATC was going to descend us into the air carrier. The air carrier reported responding to RA and at the same time we responded to a climb RA. We received 'clear of conflict' and leveled off at 6000 ft MSL.

Original NASA ASRS Text

Title: B737 CREW HAD TCASII RA IN N-90 CLASS B.

Narrative: APPROX 10 NM S OF LGA, DSNDING OUT OF 6000 FT FOR 5000 FT. APCHING 5000 FT LGA APCH CLRED US TO 3000 FT WITH A GOOD RATE TO 3000 FT. MEANWHILE OUR TCASII INDICATED A TA BELOW AND TO OUR L REAR, SO WE SLOWED OUR RATE OF DSCNT. AT THIS TIME THE ACR TOLD ATC THEY HAVE US AT THEIR 12 O'CLOCK POS AND GETTING CLOSE. WE SLOWED OUR RATE OF DSCNT MORE EVEN THOUGH ATC SAID, 'I NEED A GOOD RATE TO 3000 FT.' APPEARED ATC WAS GOING TO DSND US INTO THE ACR. THE ACR RPTED RESPONDING TO RA AND AT THE SAME TIME WE RESPONDED TO A CLB RA. WE RECEIVED 'CLR OF CONFLICT' AND LEVELED OFF AT 6000 FT MSL.

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.