Narrative:

Aircraft departed jfk en route to lszh via nat track zulu. When reporting our position and time over 49N 30W to shanwick oceanic on HF, the first officer misread the ETA for our next position, 49N 20W on the CDU readout. The ETA for 49N 15W was the time reported as our ETA for 49N 20W. I had been in the cabin checking on the condition of an ill passenger. When I returned we were approaching 2OW and the io caught our ETA mistake when preparing the report form for the next HF position report at 2OW. At the 2OW position report to shanwick we advised them of our ETA error. ATC had not noticed our wrong ETA for 20W. Proper position report made at 20W and for rest of flight. This ETA error would have been avoided if the first officer and io had compared the CDU ETA with the flight plan ETA. This was not done. It is now!

Related reports:

Google
 

Original NASA ASRS Text

Title: OCEANIC FLT. FLT CREW GAVE WRONG ETA FOR NEXT FIX TO OCEANIC CTL.

Narrative: ACFT DEPARTED JFK ENRTE TO LSZH VIA NAT TRACK ZULU. WHEN RPTING OUR POS AND TIME OVER 49N 30W TO SHANWICK OCEANIC ON HF, THE F/O MISREAD THE ETA FOR OUR NEXT POS, 49N 20W ON THE CDU READOUT. THE ETA FOR 49N 15W WAS THE TIME RPTED AS OUR ETA FOR 49N 20W. I HAD BEEN IN THE CABIN CHKING ON THE CONDITION OF AN ILL PAX. WHEN I RETURNED WE WERE APCHING 2OW AND THE IO CAUGHT OUR ETA MISTAKE WHEN PREPARING THE RPT FORM FOR THE NEXT HF POS RPT AT 2OW. AT THE 2OW POS RPT TO SHANWICK WE ADVISED THEM OF OUR ETA ERROR. ATC HAD NOT NOTICED OUR WRONG ETA FOR 20W. PROPER POS RPT MADE AT 20W AND FOR REST OF FLT. THIS ETA ERROR WOULD HAVE BEEN AVOIDED IF THE F/O AND IO HAD COMPARED THE CDU ETA WITH THE FLT PLAN ETA. THIS WAS NOT DONE. IT IS NOW!

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.