Sanya-Yaxian is a naval airbase in China.
Logged on 7 Jan 2011:
Z8-0008/---- Z-8 (no code)
Z8-0011/9117 Z-8
Z8-0012/9127 Z-8
Z9-0191/9237 Z-9
Z9-0277/9287 Z-9
Z9-0278/9297 Z-9
..../9117 Y-7
..../9027 Y-7 (winglets)
Y-7 = An-24
Z-8 = Super Frelon
Z-9 = Dauphin
Pictures can be found in the photo forum: http://forum.scramble.nl/viewtopic.php?t=70333