MY CP got a message from the FAA the other day asking who was in a certain airplane at a certain time. As it turns out, I was in the airplane at the time in question. All the message said was, "Who departed XYZ airport in N12345 at this time, and departed to the north?" I was in the airplane at the time, however I was 50 miles south of the airport, and I hadn't turned north the entire flight. I was in contact with all control towers and our local approach control as well, so it couldn't be an airspace violation. I filed and activated a flight plan. I got a weather breifing including all NOTAMS and there were no TFR's or anything significant. I was at safe altitudes the entire flight, and nothing out of the ordinary happened. The only possible reason (that I can think of) the FAA called could be because I was monitoring 121.5 to demonstrate to my student, and I happened to hear an ELT. I told the nearsest tower about it and they said that they knew about it and where it was. I can't think of what I could have done to have the FAA call about me. It has been less that 10 days so I can fill out a NASA form, but what should it say? Nothing out of the ordinary happened. Any insight on this would be greatly appreciated.
Thanks
Thanks