My route was from Frankfurt EDDF to HongKong VHHH with the routeSULUS UL984 DOPOV UT40 DOKEL UN871 LDZ UM863 GERVI UP851 RAVOK UZ860 TOBLO B365 BK B923 GUTAN A368 URL G3 AKB R366 DZG W86A ADABA A369 TIRBA B142 REVKI A460 KCA L888 PEXUN B213 WFX B330 POU R473 SIERAAnd when I was approximately 320nm from VHHH my FS9 suddenly hang up. I still can hear the engine sound. Check FS9.exe in task manager and it was only about 600 or 700MB,no way it could be OOM.What I've tried is find duplicate AFCAD and found one for VHHH,got rid of it. Use the program find_all_duplicate_v2.4.zip from avsim and found ~1500 files,got it backup. Check all the AI aircrafts at VHHH to see if there are any "grey" aircraft and fixed it. I've just try to change the time from night to day and my Fs9 still hang up <_<Recently I only install a newer AFCAD from avsim for my Imagine VHHH,could this be the cause? Still no luck so I'm posting topic for helps.Thanks :(

Oh well.I got it solved. After trying almost everything I could possibly think of, I started looking for the nearby airports to see if there are any and yes,there is one, ZGKL. I start up FS9 and try to jump to that airport,my FS9 hang up again. So definately this is the cause, I look through my addon scenery folder and found out in the JTACOF package there is ZGKL,deleted it and wooola my Fs9 ran without any crash :biggrin:I might ask Jan Martin about this problem.