Narrative:

Received 2 oceanic clrncs from gander: 1) XA55Z 4850N 5040N 5330N 5420N dogal burak exp 290 .80M. 2) XA57Z 4850N 5040N 5330N 5420N malot burak exp 290 .80M. The first clearance was according to flight plan. Captain thought the second clearance was resent at XB57Z because he had not acknowledged first clearance (via ACARS). He acknowledged second clearance and read back the number. He made an error by not noticing that dogal fix was changed to malot. We were busy coding the first clearance when second one came across. Shanwick oceanic notified us of discrepancy during position reports prior to reaching 5420N. Time was almost 4 hours later when we were notified. There was no deviation from assigned course or a traffic conflict. The shanwick controller said he was going to file a gross navigation error report, (even though no deviation had occurred). Captain made an error in receiving second clearance 3 mins after receiving first clearance. The numbers were identical except for 'a' added to the second clearance. The 2 clrncs were also the same except for substitution of fix malot for dogal. Recommendation: 1) gander should assist by including the word 'reroute' in the amended clearance. I have seen this before. 2) a completely different clearance number would help. 3) any time any new clearance is received both crew members (or 3 crew members) should read/review the clearance for any changes or discrepancies. In this case, I was not aware that a second clearance had been received.

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Original NASA ASRS Text

Title: THE FLC OF A B767 CARGO FLT IS TAKEN TO TASK AND ISSUED NOTICE OF A PENDING VIOLATION WHEN RPTING AN INCORRECT INTXN FOR THEIR PLANNED 'NEXT POINT' AFTER THE UPCOMING LATITUDE, LONGITUDE POS TO EGGX, FO.

Narrative: RECEIVED 2 OCEANIC CLRNCS FROM GANDER: 1) XA55Z 4850N 5040N 5330N 5420N DOGAL BURAK EXP 290 .80M. 2) XA57Z 4850N 5040N 5330N 5420N MALOT BURAK EXP 290 .80M. THE FIRST CLRNC WAS ACCORDING TO FLT PLAN. CAPT THOUGHT THE SECOND CLRNC WAS RESENT AT XB57Z BECAUSE HE HAD NOT ACKNOWLEDGED FIRST CLRNC (VIA ACARS). HE ACKNOWLEDGED SECOND CLRNC AND READ BACK THE NUMBER. HE MADE AN ERROR BY NOT NOTICING THAT DOGAL FIX WAS CHANGED TO MALOT. WE WERE BUSY CODING THE FIRST CLRNC WHEN SECOND ONE CAME ACROSS. SHANWICK OCEANIC NOTIFIED US OF DISCREPANCY DURING POS RPTS PRIOR TO REACHING 5420N. TIME WAS ALMOST 4 HRS LATER WHEN WE WERE NOTIFIED. THERE WAS NO DEV FROM ASSIGNED COURSE OR A TFC CONFLICT. THE SHANWICK CTLR SAID HE WAS GOING TO FILE A GROSS NAV ERROR RPT, (EVEN THOUGH NO DEV HAD OCCURRED). CAPT MADE AN ERROR IN RECEIVING SECOND CLRNC 3 MINS AFTER RECEIVING FIRST CLRNC. THE NUMBERS WERE IDENTICAL EXCEPT FOR 'A' ADDED TO THE SECOND CLRNC. THE 2 CLRNCS WERE ALSO THE SAME EXCEPT FOR SUBSTITUTION OF FIX MALOT FOR DOGAL. RECOMMENDATION: 1) GANDER SHOULD ASSIST BY INCLUDING THE WORD 'REROUTE' IN THE AMENDED CLRNC. I HAVE SEEN THIS BEFORE. 2) A COMPLETELY DIFFERENT CLRNC NUMBER WOULD HELP. 3) ANY TIME ANY NEW CLRNC IS RECEIVED BOTH CREW MEMBERS (OR 3 CREW MEMBERS) SHOULD READ/REVIEW THE CLRNC FOR ANY CHANGES OR DISCREPANCIES. IN THIS CASE, I WAS NOT AWARE THAT A SECOND CLRNC HAD BEEN RECEIVED.

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.