Less than standard separation between 2 air carrier in oceanic airspace. Operational error.

Attributes
ACN	130950
Time
Date	198912
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ack
State Reference	MA
Altitude	msl bound lower : 33000 msl bound upper : 33000
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zny artcc : zbw tracon : ase
Operator	common carrier : air carrier
Make Model Name	Widebody Transport
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : other oceanic
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : flight data
Qualification	controller : radar
Experience	controller non radar : 5 controller radar : 4
ASRS Report	130950
Person 2
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : radar
ASRS Report	131027
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Intra Facility Coordination Failure Operational Error

Narrative:

Revised fp on oceanic flight. Original strip was still at sector, along with revision. Aircraft was given clearance shown on original strip. When oceanic non radar controller realized that aircraft X was no on route indicated on strips (revision #2), X in conflict with air carrier Y. Aircraft should be given clearance on the ground by clearance delivery, who changed his route twice, not by center sector who does not work oceanic airspace. Aircraft was airborne over 2 hours before confliction occurred. In non radar environment, several fix estimates were given for fixes not on strip. These should have been questioned.

Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION BETWEEN 2 ACR IN OCEANIC AIRSPACE. OPERATIONAL ERROR.

Narrative: REVISED FP ON OCEANIC FLT. ORIGINAL STRIP WAS STILL AT SECTOR, ALONG WITH REVISION. ACFT WAS GIVEN CLRNC SHOWN ON ORIGINAL STRIP. WHEN OCEANIC NON RADAR CTLR REALIZED THAT ACFT X WAS NO ON ROUTE INDICATED ON STRIPS (REVISION #2), X IN CONFLICT WITH ACR Y. ACFT SHOULD BE GIVEN CLRNC ON THE GND BY CLRNC DELIVERY, WHO CHANGED HIS ROUTE TWICE, NOT BY CENTER SECTOR WHO DOES NOT WORK OCEANIC AIRSPACE. ACFT WAS AIRBORNE OVER 2 HRS BEFORE CONFLICTION OCCURRED. IN NON RADAR ENVIRONMENT, SEVERAL FIX ESTIMATES WERE GIVEN FOR FIXES NOT ON STRIP. THESE SHOULD HAVE BEEN QUESTIONED.

Data retrieved from NASA's ASRS site as of August 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.