Near midair collision over lga in N90 airspace.

Attributes
ACN	279103
Time
Date	199406
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 3600 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise other cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 6000
ASRS Report	279103
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 300 vertical : 300
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Received a TA on our TCASII, shortly followed by a RA overhead lga airport. Took corrective action which was a 400 FPM rate of descent to avoid conflict. Simultaneously advised ny approach of action. His response was apologetic for not issuing an advisory. The aircraft was spotted shortly after leveling off at 3600 ft. Aircraft type was high wing single-engine.

Original NASA ASRS Text

Title: NMAC OVER LGA IN N90 AIRSPACE.

Narrative: RECEIVED A TA ON OUR TCASII, SHORTLY FOLLOWED BY A RA OVERHEAD LGA ARPT. TOOK CORRECTIVE ACTION WHICH WAS A 400 FPM RATE OF DSCNT TO AVOID CONFLICT. SIMULTANEOUSLY ADVISED NY APCH OF ACTION. HIS RESPONSE WAS APOLOGETIC FOR NOT ISSUING AN ADVISORY. THE ACFT WAS SPOTTED SHORTLY AFTER LEVELING OFF AT 3600 FT. ACFT TYPE WAS HIGH WING SINGLE-ENG.

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.