Hi X
4B0E97 decodes to HB-FNR which was once a PC-6 and is now Mongolian, think we have had this one before and still unidentified
8862B8 doesnt decode so will look out for it but likely to be as you state.
One heading in your direction but I dont know its full routing is 385AFB,F-WKVC,1071,Aerospatiale ATR 72-600,Lao Aviation, heading to Luxor but no idea after that.
Alan