Air carrier X had near midair collision with small aircraft Y. See and avoid concept. Evasive action...

Attributes
ACN	186009
Time
Date	199108
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : swf
State Reference	NY
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 8
ASRS Report	186009
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : investigated
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Ambiguous

Narrative:

I was training a controller during moderate complex traffic. We needed some help but we are short staffed. Air carrier X was released quite a few mins before he was rolling (and there was no call). At that time we were distraction by a safety advisory between 2 VFR aircraft. Because of the proximity of these 2 aircraft to swf airport and air carrier X's tag acquiring it was impossible to see any other aircraft in the vicinity. When he announced he had a problem with an small aircraft Y. Just then a target acquired with an altitude similar to air carrier X's. The pilot of the carrier announced he just had an small aircraft in his nose, a near midair collision. There was no transponder observed until after air carrier X advised us of the conflict.

Original NASA ASRS Text

Title: ACR X HAD NMAC WITH SMA Y. SEE AND AVOID CONCEPT. EVASIVE ACTION TAKEN.

Narrative: I WAS TRAINING A CTLR DURING MODERATE COMPLEX TFC. WE NEEDED SOME HELP BUT WE ARE SHORT STAFFED. ACR X WAS RELEASED QUITE A FEW MINS BEFORE HE WAS ROLLING (AND THERE WAS NO CALL). AT THAT TIME WE WERE DISTR BY A SAFETY ADVISORY BTWN 2 VFR ACFT. BECAUSE OF THE PROX OF THESE 2 ACFT TO SWF ARPT AND ACR X'S TAG ACQUIRING IT WAS IMPOSSIBLE TO SEE ANY OTHER ACFT IN THE VICINITY. WHEN HE ANNOUNCED HE HAD A PROBLEM WITH AN SMA Y. JUST THEN A TARGET ACQUIRED WITH AN ALT SIMILAR TO ACR X'S. THE PLT OF THE CARRIER ANNOUNCED HE JUST HAD AN SMA IN HIS NOSE, A NMAC. THERE WAS NO TRANSPONDER OBSERVED UNTIL AFTER ACR X ADVISED US OF THE CONFLICT.

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.

Air carrier X had near midair collision with small aircraft Y. See and avoid concept. Evasive action taken.