INFLT ENG SHUT DOWN EXPERIENCED BY A B747-200 CARGO CREW 5 HRS AFTER TKOF DURING A SANDSTORM IN WINDY CONDITIONS AT ANC; AK.

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TKOF FROM ANCHORAGE INTL TO SHANGHAI; CHINA (ZSPD). WX IN ANCHORAGE WAS CLR WITH 6 MI VISIBILITY; BLOWING DUST; WINDS 360 DEGS/20 KTS GUSTING 33 KTS. TKOF RWY 32. TKOF WAS UNEVENTFUL WITH +/-15 KTS OF AIRSPD AND WINDSHEAR. INITIAL LEVELOFF WAS 31000 FT AND CLR SKY; UNLIMITED VISIBILITY. APPROX 30 MINS AFTER LEVELOFF; A SLIGHT YAW WAS FELT; ALL ENG PARAMETERS WERE NORMAL. THE #1 AND #2 EGT READINGS NORMAL; BUT A BLUE EVENT LIGHT ON BOTH; AND #2 HAD A RED OVERTEMP LIGHT AS WELL. THE STORED EGT VALUES WERE #1; 686 DEGS C (650 DEGS C MAX CRUISE); #2; 1100 DEGS C (650 DEGS C MAX CRUISE). AFTER REVIEWING AOM PROCS AND CONFERRING WITH DISPATCH; IT WAS EASY TO DECIDE TO CONTINUE TO ZSPD. (ALL ENG PARAMETERS NORMAL.) APPROX 5 1/2 HRS LATER; AS WE WERE LEAVING RUSSIAN AIRSPACE AND ENTERING CHINESE AIRSPACE; THE ANOMALY OCCURRED AGAIN WITH THE #2 ENG. THE #2 COMPRESSOR STALLED AND WE PROMPTLY SECURED THIS ENG. COM WITH CHINESE ATC WAS VERY DIFFICULT. WE REQUESTED THE ZSPD WX (2 1/2 HRS AWAY) AND BEIJING WX (60 MINS). BEIJING WAS OUR ALTERNATE. THE RPTED WX IN ZSPD WAS LOW IFR AND WE HAD CONCERNS OF THE LACK OF OPTIONS IN THAT AREA AND REQUESTED TO GO TO BEIJING AND DECLARED AN EMER. ATC DENIED OUR REQUEST AND WANTED US TO LAND AT AN ARPT THAT WE HAD NO INFO ON (PERFORMANCE OR ATC). WE AGREED THAT DAELIN WOULD BE A VIABLE OPTION AND THE WX WAS VFR. (ATC OK'D THAT OPTION.) ONCE OUR ABILITY TO TALK TO OUR COMPANY WAS RESTORED; WE RECEIVED VFR WX IN ZSPD AND PROCEEDED THERE FOR AN UNEVENTFUL LNDG. THE FINDING ON THE #2 ENG WAS EXCESSIVE 'SAND' IN THE MOTOR. THIS WAS FOUND IN ALL 4 MOTORS. I FEEL THIS RPT IS SIGNIFICANT TO EVALUATE PROCS WITH ACFT SITTING ON THE GND IN HIGH WINDS AND BLOWING DUST. PRECAUTIONS TO PROPERLY SECURE ACFT IN SUCH CONDITIONS WARRANT A SAFETY EVALUATION. FURTHER NOTE: SEVERAL HRS AFTER OUR DEP; ANC SHUT DOWN DUE TO WINDS GUSTING TO 109 KTS.