ANC86LA160

NTSB accident investigation · de Havilland DHC-3 · American River, AK · September 20, 1986

Accident · Minor injuriesLimited investigationFinal report
Date
September 19, 1986, 17:17 local (Sep 20, 1986, 01:17 UTC)
Place
American River, AK
Injuries
2 minor, 3 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N83Ude Havilland DHC-3
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19860919048009A
Case key
4744

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with terrain/waterTakeoff - initial climb
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - loose gravel/sandyFactor
Terrain condition - rough/unevenFactor
Weather condition - crosswindFactor
Weather condition - gustsFactor
Preflight planning/preparation - inadequatePilot in commandCause
Self-induced pressurePilot in commandFactor
Airspeed - not obtainedPilot in commandCause
Stall/mush
Terrain condition - dirt bank/rising embankmentFactor

Analysis

After landing on a 1200 ft gravel bar, the plt paced off the available area, estimated the load to pick up, then loaded the acft. Due to the x-wind, he used less than takeoff flaps. He began taking off, but after lift-off, the acft 'seemed to hit a downdraft.' The plt selected takeoff flaps & began a slight turn to get more room to clear a 20 ft bank of dirt. However, the acft would not clear the bank. After impact, it came to rest on the tundra & the occupants exited the plane.

Aircraft

Registration
N83U
Reported as
de Havilland DHC-3
Category
Airplane
Serial number
371
Airframe hours
8,154
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Bering Air Service
Registered owner
Bering Air Service
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 26, 1986 · 37 hours before
Destination
Nome, AK
Flight plan
VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
29
Certificate
Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
9,240 total · 1,500 in this make and model · 9,239 as pilot in command · 180 in the last 90 days · 100 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 5 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
1,200 ft broken
Temperature
36 °F, dew point 10 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.