THE PLT HAD PURCHASED THE ACFT AT REXBURG, ID ON THE DAY OF THE ACCIDENT. REPORTEDLY, THE PREVIOUS OWNER HAD FLOWN WITH THE PLT, BEFORE THE PLT DEPARTED REXBURG, AND SAID HE HAD FLOWN THE ACFT VERY WELL. THE PREVIOUS OWNER STATED THAT THE DME WAS NOT FUNCTIONING AT THE TIME THE ACFT WAS PURCHASED & HAD LEFT REXBURG. THE PLT THEN DEPARTED ON A FLT TO POTEAU, OK WITH AN EN ROUTE STOP AT HUTCHINSON, KS. AT HUTCHINSON, THE ACFT WAS REFUELED, BUT NO MAINTEANCE WAS PERFORMED. THE PLT TOOK OFF ON THE FINAL PORTION OF THE FLT TO POTEAU AT 1905 CST. DURING ARRIVAL, HE WAS INSTRUCTEDTO REMAIN AT 4500 FT UNTIL CROSSING THE RICH MOUNTAIN VOR, THEN WAS CLEARED FOR THE VOR/DME RWY 36 APCH. DURING THE, APCH, THE ACFT COLLIDED WITH RISING TERRAIN AT ABOUT 2550 FT, APRX 2 MI NORTH OF THE VOR. THE MIN STEP-DOWN ALT WAS 4000 FT UNTIL 8 MI NORTH OF THE VOR, THEN THE MIN ALT WAS 2400 FT UNTIL CROSSING THE FINAL APCH FIX, 15 MI NORTH OF THE VOR. NO PREIMPACT MALFUNCTION WAS FOUND EXCEPT FOR THE INOPERATIVE DME.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

Contributing Factors

COMM/NAV EQUIPMENT,DISTANCE MEASURING EQPT(DME)..INOPERATIVE

Contributing Factors

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..INTENTIONAL..PILOT IN COMMAND

Contributing Factors

IFR PROCEDURE..IMPROPER..PILOT IN COMMAND

Contributing Factors

WEATHER CONDITION..LOW CEILING

Contributing Factors

WEATHER CONDITION..FOG

Contributing Factors

WEATHER CONDITION..RAIN

Contributing Factors

TERRAIN CONDITION..HIGH TERRAIN

Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY

Contributing Factors

TERRAIN CONDITION..RISING

Index for Dec1983 | Index of months