B733
That Boeing 737-300 is aircraft owned by JAT Airways Serbia flag airline. I know cause i saw it few days ago in their maintenance hangar painted in very nice Bluetail colour scheme ready to go. I have no idea wheather is it leased or bought but i kind of think the first one, cause JAT has long history of doing same deals with Nigerian companys. Btw. DC9 of Sosoliso that crashed few months ago was ex JAT airplane.
Cheers Alex