B767 crew had confusing waypoint estimates with eggx and egpx control.

Attributes
ACN	482630
Time
Date	200008
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : egpx.artcc
State Reference	FO
Altitude	msl single value : 33000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : egpx.artcc
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : atlantic
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
ASRS Report	482630
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Company
Primary Problem	Ambiguous

Narrative:

Reclrnc due to early ETA at 5910N. After receiving and accepting our oceanic clearance from shanwick, we were cleared direct to 5910N. This changed our ETA at 5910N, so we informed ATC (scottish) of our new ETA. Shortly thereafter, we received an ACARS reclrnc message from shanwick. Nothing had changed except the entry time. I thought this was shanwick's way of informing us that they had received our updated ETA. Not wanting to confuse anyone, we did not do the ACARS drill. Just before arriving at 5910N, we got a 'message timed out, use voice procedures' message on ACARS. We then tried the 'ACARS' drill and got the 'clearance accepted' message. Captain then called shanwick on VHF to confirm our clearance. As he was doing that, ATC called and also said we were reclred and read us the same clearance that we originally had. I read back our track coordinates to ATC and we had an uneventful crossing.

Original NASA ASRS Text

Title: B767 CREW HAD CONFUSING WAYPOINT ESTIMATES WITH EGGX AND EGPX CTL.

Narrative: RECLRNC DUE TO EARLY ETA AT 5910N. AFTER RECEIVING AND ACCEPTING OUR OCEANIC CLRNC FROM SHANWICK, WE WERE CLRED DIRECT TO 5910N. THIS CHANGED OUR ETA AT 5910N, SO WE INFORMED ATC (SCOTTISH) OF OUR NEW ETA. SHORTLY THEREAFTER, WE RECEIVED AN ACARS RECLRNC MESSAGE FROM SHANWICK. NOTHING HAD CHANGED EXCEPT THE ENTRY TIME. I THOUGHT THIS WAS SHANWICK'S WAY OF INFORMING US THAT THEY HAD RECEIVED OUR UPDATED ETA. NOT WANTING TO CONFUSE ANYONE, WE DID NOT DO THE ACARS DRILL. JUST BEFORE ARRIVING AT 5910N, WE GOT A 'MESSAGE TIMED OUT, USE VOICE PROCS' MESSAGE ON ACARS. WE THEN TRIED THE 'ACARS' DRILL AND GOT THE 'CLRNC ACCEPTED' MESSAGE. CAPT THEN CALLED SHANWICK ON VHF TO CONFIRM OUR CLRNC. AS HE WAS DOING THAT, ATC CALLED AND ALSO SAID WE WERE RECLRED AND READ US THE SAME CLRNC THAT WE ORIGINALLY HAD. I READ BACK OUR TRACK COORDINATES TO ATC AND WE HAD AN UNEVENTFUL XING.

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.