I am a huge B747SP afficionado and enjoy to learn that these babies are still plying the skies .. although it seems that most SP's now are used for gov't use, I do believe that Iran Air still uses them ... I see them alot at NRT...but this Yemini SP was indeed a rare gem to the US I believe. Fm the pix I have seen, it looks real sharp as well. Certainly glad to read that you wrote this post about it.
After LAX, it went to Boston, then non-stop to Addis Ababa (ICAO callsign was IYE7000 to the US, then IYE7001 to Africa) ..registration is 7OYMN.
Truly magnificient to see these beauties