Operator error -- loss of separation between air carrier X and air carrier Y.

Attributes
ACN	281006
Time
Date	199408
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ome
State Reference	AK
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zan artcc : zid
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 9 controller radar : 7
ASRS Report	281006
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 30000 vertical : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

I was working sector 3 at anc ARTCC. I had an arrival departure situation at ome and was going to use DME passage to resolve the situation. The departing and arriving aircraft were asked their DME, the reports indicated that we had tail to tail. However when we requested the reports the arriving aircraft answered for the departing aircraft and the full call sign was not used. This lead to a hear back error and a mistake was made in the position of the aircraft which lead to a loss of separation.

Original NASA ASRS Text

Title: OPERATOR ERROR -- LOSS OF SEPARATION BTWN ACR X AND ACR Y.

Narrative: I WAS WORKING SECTOR 3 AT ANC ARTCC. I HAD AN ARR DEP SIT AT OME AND WAS GOING TO USE DME PASSAGE TO RESOLVE THE SIT. THE DEPARTING AND ARRIVING ACFT WERE ASKED THEIR DME, THE RPTS INDICATED THAT WE HAD TAIL TO TAIL. HOWEVER WHEN WE REQUESTED THE RPTS THE ARRIVING ACFT ANSWERED FOR THE DEPARTING ACFT AND THE FULL CALL SIGN WAS NOT USED. THIS LEAD TO A HEAR BACK ERROR AND A MISTAKE WAS MADE IN THE POS OF THE ACFT WHICH LEAD TO A LOSS OF SEPARATION.

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.