Hi,I looked for during ....too much hours in forums about this anomaly: when I enter these coord N45W020 in legs page of the FMC (747PMDG) the FMC transform automatically in N45W019????Do you know if it's a bug or if there is a geographical reason or another reason???Thank you for your help

Try this approach (found in an earlier posting), which in your case would be 4520N:N latitude/W longitudeN52 00/W075 00 = 5275NN50 00/W040 00 = 5040NN07 00/W008 00 = 0708NN75 00/W170 00 = 75N70N07 00/W120 00 = 07N20N latitude/E longitudeN50 00/E020 00 = 5020EN75 00/E050 00 = 7550EN06 00/E008 00 = 0608EN75 00/E150 00 = 75E50N06 00/E110 00 = 06E10S latitude/W longitudeS52 00/W075 00 = 5275WS50 00/W040 00 = 5040WS07 00/W008 00 = 0708WS75 00/W170 00 = 75W70S07 00/W120 00 = 07W20S latitude/E longitudeS50 00/E020 00 = 5020SS75 00/E050 00 = 7550SS06 00/E008 00 = 0608SS75 00/E150 00 = 75S50S06 00/E110 00 = 06S10

Thank you a lot for your answer, it runs, but I am estonished because the heading and the distance on the legs page didn't change. I'll see during the flight if the parameters will change. My flight on IVAO net will be tomorrow... I hope...I'll give you the results after my landing at TFFR...if no crash and if I am not lost above the Atlantic...lol ;-))

Yes. The waypoint will be placed correctly but the CDU will show the wrong coordinates. It's a known discrepancy.Cheers,