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NTSB Report
November 5, 1983 · De Havilland DHC-2 · N9006
Challis, ID
Overview
Report Status
Preliminary report
Event Type
Accident
Date
November 5, 1983
Injury Outcomes
4 injuries (4 fatalities)
Location
Challis, ID
Aircraft
De Havilland DHC-2
Tail Number
N9006
Operator
Air Unlimited
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA84MA016
THE PLT TOOK OFF FROM THE SIMPLOT RANCH AIRSTRIP WHICH WAS LOCATED BESIDE THE MIDDLE FORK OF THE SALMON RIVER, APRX 27 MI NORTHWEST OF CHALLIS, ID. HE DEPARTED DOWNRIVER TOWARD THE NORTHEAST, BUT THE DESTINATION WAS A USFS STRIP ABOUT 7 MI UPRIVER TO THE SOUTHWEST. A COURSE REVERSAL NORMALLY WOULD HAVE BEEN MADE ABOUT 6 MI DOWNRIVER. HOWEVER, A TURN- AROUND WAS ATTEMPTED OVER A RELATIVELY SHALLOW (BENCH) AREA ON THE WEST SIDE OF THE RIVER, ABOUT 1-1/4 MI FROM THE DEPARTURE STRIP; WHERE, ACCORDING TO THE OPERATOR, IT COULD HAVE BEEN MADE UNDER IDEAL CONDITIONS. THE ACFT CRASHED IN THE BENCH AREA WHILE ON A WESTERLY HEADING. IT CAME TO REST IN AN UPRIGHT ATTITUDE WITH LITTLE EVIDENCE OF FORWARD VELOCITY, BUT WITH SEVERE VERTICAL COLLAPSE. NO EVIDENCE OF A PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS FOUND.
Full Narrative
THE PLT TOOK OFF FROM THE SIMPLOT RANCH AIRSTRIP WHICH WAS LOCATED BESIDE THE MIDDLE FORK OF THE SALMON RIVER, APRX 27 MI NORTHWEST OF CHALLIS, ID. HE DEPARTED DOWNRIVER TOWARD THE NORTHEAST, BUT THE DESTINATION WAS A USFS STRIP ABOUT 7 MI UPRIVER TO THE SOUTHWEST. A COURSE REVERSAL NORMALLY WOULD HAVE BEEN MADE ABOUT 6 MI DOWNRIVER. HOWEVER, A TURN- AROUND WAS ATTEMPTED OVER A RELATIVELY SHALLOW (BENCH) AREA ON THE WEST SIDE OF THE RIVER, ABOUT 1-1/4 MI FROM THE DEPARTURE STRIP; WHERE, ACCORDING TO THE OPERATOR, IT COULD HAVE BEEN MADE UNDER IDEAL CONDITIONS. THE ACFT CRASHED IN THE BENCH AREA WHILE ON A WESTERLY HEADING. IT CAME TO REST IN AN UPRIGHT ATTITUDE WITH LITTLE EVIDENCE OF FORWARD VELOCITY, BUT WITH SEVERE VERTICAL COLLAPSE. NO EVIDENCE OF A PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS FOUND.
Flight
Event TypeAccident
Event Time12:20 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftDe Havilland DHC-2
Tail NumberN9006
Aircraft CategoryAir
DamageDestroyed
OperatorAir Unlimited
Operating RulePart 135
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats4
People & Injuries
Injury Summary4 injuries (4 fatalities)
Fatal4
Serious0
Minor0
Uninjured0
Total4
Crew 1Age 27 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourceWIT