AV 52

Here’s an interesting one. This guy is headed oceanic with ZOA/134.15 and is calling himself ALPHA VICTOR FIVE TWO. Sometimes these two-letter-two-number guys are Navy, and sometimes Air Force, but he was climbing to FL360 and headed to ALLBE, so I didn’t think he was a single fighter out for a joy ride. Then he slipped up, calling himself FIVE TWO SIERRA MIKE, then correcting himself back to AV 52.

http://flightaware.com/live/flight/N52SM

Any idea what AV means in this context?

flightaware.com/live/flight/N52S … /KOAK/PHNL

The AV could be an internal flight ident for Sierra Pacific Industries.

Sure, it could be. But what’s it doing in a conversation with ATC?

Could be the flight number he designated in his flight plan.