Umberto thank you very much for your time to answer my inquiry.
Yes i used the last installation file for P3Dv3, is the first time I buy this product. This issue is really weird. After that, I used a little aircraft to fly around the KJFK airport and verify if the problem persists, but no problem at all. I think this could be related to resources exhausted in my PC, after flying for a while, despite the fact that I have a powered computer: Asus Z97PRO, Core I5 4690K, 16 GB RAM, SSD disk, MSI 750 (but changing to 980 ti in a couple of weeks).
I will continue testing because I'm flying now from KBOS to KJFK, and viceversa, trying a couple addon sceneries I recently bought. So it could be a problem from the other party.
Best regards.