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Willow, AK
ABOUT 5 TO 10 MIN PRIOR TO THE ACDNT, SVRL WITNESSES IN THE VICINITY OF THE WILLOW ARPT SAW THE ACFT HEADED SOUTHBOUND. THEY RPRTD THE ENG WAS RUNNING ROUGH, BUT THEY SAW NO SMOKE OR FIRE. APRX 3 MI FURTHER SOUTH, OTHER WITNESSES SAW THE ACFT MAKE A 180 DEG TURN BACK TWD THE ARPT. THEY RPRTD THE ENG WAS RUNNING ROUGH & THEY BELIEVED BLACK SMOKE WAS TRAIL- ING FROM THE LOWER ENG AREA. AS THE ACFT CONTD TWD THE ARPT, OTHERS HEARD &/OR SAW THE ACFT. SOME RPRTD THE ENG WAS RUNNING VERY ROUGH. OTHERS CLOSER TO THE ARPT SAW NO SMOKE & SVRL THOUGHT THE ENG WAS NOT RUNNING. ONE WITNESS NEAR THE ARPT STATED THE AIRSPEED WAS SLOW JUST BEFORE THE ACFT HIT TREES AT THE EDGE OF A WOODED AREA. THE ACFT CRASHED & BURNED APRX 1600 FT FROM THE APCH END OF RWY 31. AN EXAM OF THE WRECKAGE & A TEARDOWN OF THE ENG WERE MADE, BUT NO PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS VERIFIED. HOWEVER, THE ACFT WAS EXTENSIVELY DAMAGED BY IMPACTED & FIRE.
ABOUT 5 TO 10 MIN PRIOR TO THE ACDNT, SVRL WITNESSES IN THE VICINITY OF THE WILLOW ARPT SAW THE ACFT HEADED SOUTHBOUND. THEY RPRTD THE ENG WAS RUNNING ROUGH, BUT THEY SAW NO SMOKE OR FIRE. APRX 3 MI FURTHER SOUTH, OTHER WITNESSES SAW THE ACFT MAKE A 180 DEG TURN BACK TWD THE ARPT. THEY RPRTD THE ENG WAS RUNNING ROUGH & THEY BELIEVED BLACK SMOKE WAS TRAIL- ING FROM THE LOWER ENG AREA. AS THE ACFT CONTD TWD THE ARPT, OTHERS HEARD &/OR SAW THE ACFT. SOME RPRTD THE ENG WAS RUNNING VERY ROUGH. OTHERS CLOSER TO THE ARPT SAW NO SMOKE & SVRL THOUGHT THE ENG WAS NOT RUNNING. ONE WITNESS NEAR THE ARPT STATED THE AIRSPEED WAS SLOW JUST BEFORE THE ACFT HIT TREES AT THE EDGE OF A WOODED AREA. THE ACFT CRASHED & BURNED APRX 1600 FT FROM THE APCH END OF RWY 31. AN EXAM OF THE WRECKAGE & A TEARDOWN OF THE ENG WERE MADE, BUT NO PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS VERIFIED. HOWEVER, THE ACFT WAS EXTENSIVELY DAMAGED BY IMPACTED & FIRE.