ZBW experienced loss of separation with 2 aircraft level at FL310.

Attributes
ACN	605869
Time
Date	200401
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : syr.airport
State Reference	NY
Altitude	msl single value : 31000
Environment
Flight Conditions	IMC
Weather Elements	Snow
Light	Night
Aircraft 1
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zbw.artcc
Operator	common carrier : air carrier
Make Model Name	EMB ERJ 145 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : non radar controller : radar
Experience	controller limited radar : 1 controller non radar : 2 controller radar : 10 controller time certified in position1 : 13
ASRS Report	605869
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure
Independent Detector	atc equipment : conflict alert
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 28200 vertical : 0
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft X en route to cvg at FL310 was turned right to a 340 degree heading for spacing to cvg. Aircraft Y was en route to yyz at FL310, about 12 mi parallel to aircraft X. Aircraft X and aircraft Y were vectored away from each other but came within 4.7 mi of each other at the same altitude.

Original NASA ASRS Text

Title: ZBW EXPERIENCED LOSS OF SEPARATION WITH 2 ACFT LEVEL AT FL310.

Narrative: ACFT X ENRTE TO CVG AT FL310 WAS TURNED R TO A 340 DEG HDG FOR SPACING TO CVG. ACFT Y WAS ENRTE TO YYZ AT FL310, ABOUT 12 MI PARALLEL TO ACFT X. ACFT X AND ACFT Y WERE VECTORED AWAY FROM EACH OTHER BUT CAME WITHIN 4.7 MI OF EACH OTHER AT THE SAME ALT.

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.