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NTSB Report
May 20, 1983 · Sud Aviation SA 318C · N67099
Near Yakutat, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 20, 1983
Injury Outcomes
No injuries (4 uninjured)
Location
Near Yakutat, AK
Aircraft
Sud Aviation SA 318C
Tail Number
N67099
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA83FAD02
THE PLT WAS ON A FLT TO DELIVER 3 PASSENGERS & CARGO TO A RIDGE NEAR THE UPPER PART OF A GLACIER. THE ALTITUDE WAS APRX 5200 FT MSL. THE PLT REPORTED THAT THE WX WAS 6000 FT SCATTERED, VISIBILITY 20 MI, WIND FROM THE EAST AT 5 KTS. ACCORDING TO HIM, HE ENCOUNTERED A WHITE-OUT CONDITION AS THE HELICOPTER WAS ABOUT TO TOUCH DOWN DURING THE LANDING. THE RIGHT FLOAT, THEN THE MAIN ROTOR, STRUCK THE SNOW COVERED SURFACE & THE HELICOPTER ROLLED OVER. THE HELICOPTER WAS SHUT DOWN & ALL OCCUPANTS EVACUATED WITH NO INJURIES. THEY REMAINED AT THE SCENE WITH SURVIVAL GEAR UNTIL RESCUED THE FOLLOWING DAY. THE RESCUE WAS DELAYED BY WX.
Full Narrative
THE PLT WAS ON A FLT TO DELIVER 3 PASSENGERS & CARGO TO A RIDGE NEAR THE UPPER PART OF A GLACIER. THE ALTITUDE WAS APRX 5200 FT MSL. THE PLT REPORTED THAT THE WX WAS 6000 FT SCATTERED, VISIBILITY 20 MI, WIND FROM THE EAST AT 5 KTS. ACCORDING TO HIM, HE ENCOUNTERED A WHITE-OUT CONDITION AS THE HELICOPTER WAS ABOUT TO TOUCH DOWN DURING THE LANDING. THE RIGHT FLOAT, THEN THE MAIN ROTOR, STRUCK THE SNOW COVERED SURFACE & THE HELICOPTER ROLLED OVER. THE HELICOPTER WAS SHUT DOWN & ALL OCCUPANTS EVACUATED WITH NO INJURIES. THEY REMAINED AT THE SCENE WITH SURVIVAL GEAR UNTIL RESCUED THE FOLLOWING DAY. THE RESCUE WAS DELAYED BY WX.
Flight
Event TypeAccident
Event Time10:30 AHDT
Nearest AirportYALUTAT (0nm N)
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSud Aviation SA 318C
Tail NumberN67099
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 135
Engines1
Engine TypeTurboshaft
Engine DetailsTurbomeca · ASTAZOU IIA · Turboshaft · 485
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 35 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind90° @ 5 kt
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO