Air carrier aircraft drifted off centerline and had less than standard separation.

Attributes
ACN	172711
Time
Date	199103
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bwz
State Reference	NY
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Route In Use	enroute airway : zny
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 3 controller radar : 2
ASRS Report	172711
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation other spatial deviation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 27000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Pilot Deviation

Narrative:

Aircraft drifted 3.5 mi east of centerline of J6 arwy, causing loss of sep with another air carrier on J48, 7 mi east of J6. This is a constant problem, having 2 arwys 7 mi apart, with an accepted navigation tolerance of plus or minus 4 mi either side of centerline. The problem is exacerbated by the fact that these aircraft are being controled by 2 different controllers.

Original NASA ASRS Text

Title: ACR ACFT DRIFTED OFF CENTERLINE AND HAD LESS THAN STANDARD SEPARATION.

Narrative: ACFT DRIFTED 3.5 MI E OF CTRLINE OF J6 ARWY, CAUSING LOSS OF SEP WITH ANOTHER AIR CARRIER ON J48, 7 MI E OF J6. THIS IS A CONSTANT PROB, HAVING 2 ARWYS 7 MI APART, WITH AN ACCEPTED NAV TOLERANCE OF PLUS OR MINUS 4 MI EITHER SIDE OF CTRLINE. THE PROB IS EXACERBATED BY THE FACT THAT THESE ACFT ARE BEING CTLED BY 2 DIFFERENT CTLRS.

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.