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NTSB Report
December 6, 1982 · Enstrom F-28A · N9607
Chugiak, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
December 6, 1982
Injury Outcomes
1 injury (1 minor injury), 2 uninjured
Location
Chugiak, AK
Aircraft
Enstrom F-28A
Tail Number
N9607
Operator
Alyeska Air Service
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ANC83FA022
THE AIRCRAFT COLLIDED WITH GROUND AND ROLLED WHILE THE PILOT WAS HOVER TAXIING DOWNWIND. THE WINDS WERE DESCRIBED AS 15 KTS TO GUSTS AS HIGH AS 45 KTS. THE ENSTROM CHIEF ENGINEER REPORTED THAT A DOWNWIND HOVER TENDS TO DECAY THE MAIN ROTOR RPM DUE TO EXCESSIVE USE OF TAILROTOR PEDAL, ESPECIALLY AT HIGH GROSS WEIGHTS. THIS AIRCRAFT WAS NEAR ITS MAXIMUM GROSS WEIGHT.
Full Narrative
THE AIRCRAFT COLLIDED WITH GROUND AND ROLLED WHILE THE PILOT WAS HOVER TAXIING DOWNWIND. THE WINDS WERE DESCRIBED AS 15 KTS TO GUSTS AS HIGH AS 45 KTS. THE ENSTROM CHIEF ENGINEER REPORTED THAT A DOWNWIND HOVER TENDS TO DECAY THE MAIN ROTOR RPM DUE TO EXCESSIVE USE OF TAILROTOR PEDAL, ESPECIALLY AT HIGH GROSS WEIGHTS. THIS AIRCRAFT WAS NEAR ITS MAXIMUM GROSS WEIGHT.
Flight
Event TypeAccident
Event Time13:15 AHST
Nearest AirportBirchwood Airport (0nm N)
Runway19
Runway Length4000 ft
Runway Width100 ft
Flight Plan FiledUnknown
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftEnstrom F-28A
Tail NumberN9607
Aircraft CategoryHeli
DamageSubstantial
OperatorAlyeska Air Service
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360C1A · Reciprocating · 205
Seats3
People & Injuries
Injury Summary1 injury (1 minor injury), 2 uninjured
Fatal0
Serious0
Minor1
Uninjured2
Total3
Crew 1Age 29 · Second Class
Conditions
ConditionsVMC
LightDark Night
Wind360° @ 15 kt
Visibility15 sm
CeilingOvercast 3000 ft
Temperature / Dew Point0 C
Altimeter29.00 inHg