<< >> NASA ASRS Report 701682, June 2006

A B737 crew descending into lga on the river visual; received a TCAS RA. The other aircraft was VFR and both aircraft were in contact with N90 TRACON.

Attributes
ACN	701682
Time
Date	200606
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	msl bound lower : 4000 msl bound upper : 7000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90.tracon
Operator	common carrier : air carrier
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude
Route In Use	arrival : vfr
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : n90.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	701682
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Problem Areas	Environmental Factor ATC Facility ATC Human Performance Airspace Structure
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

On the korry arrival to lga just past renue intersection; the controller cleared us to fly up the river and descend from 7000 to 4000 ft. In the descent; we received a TCAS alert and subsequent climb command. We executed a climb via TCAS guidance and informed ATC. We continued the climb to comply with TCAS guidance. The controller said that the VFR traffic had us in sight. TCAS indicated the traffic was 100 ft below us. First officer said he saw the traffic at the last second about 100 ft low as it passed under our nose at about 1 O'clock position. I never saw the traffic. The in-flight visibility was approximately 1.5 mi.

Related reports:

• MD80 crew descending into ord received a TCAS RA to avoid VF...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A B737 CREW DSNDING INTO LGA ON THE RIVER VISUAL; RECEIVED A TCAS RA. THE OTHER ACFT WAS VFR AND BOTH ACFT WERE IN CONTACT WITH N90 TRACON.

Narrative: ON THE KORRY ARR TO LGA JUST PAST RENUE INTXN; THE CTLR CLRED US TO FLY UP THE RIVER AND DSND FROM 7000 TO 4000 FT. IN THE DSCNT; WE RECEIVED A TCAS ALERT AND SUBSEQUENT CLB COMMAND. WE EXECUTED A CLB VIA TCAS GUIDANCE AND INFORMED ATC. WE CONTINUED THE CLB TO COMPLY WITH TCAS GUIDANCE. THE CTLR SAID THAT THE VFR TFC HAD US IN SIGHT. TCAS INDICATED THE TFC WAS 100 FT BELOW US. FO SAID HE SAW THE TFC AT THE LAST SECOND ABOUT 100 FT LOW AS IT PASSED UNDER OUR NOSE AT ABOUT 1 O'CLOCK POS. I NEVER SAW THE TFC. THE INFLT VISIBILITY WAS APPROX 1.5 MI.

Data retrieved from NASA's ASRS site as of January 2009 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.