ANC85LA101

NTSB accident investigation · de Havilland DHC-2 · Bering River, AK · June 20, 1985

Accident · No injuriesLimited investigationFinal report
Date
June 20, 1985, 12:20 local (20:20 UTC)
Place
Bering River, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N99838de Havilland DHC-2
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19850620026599A
Case key
4504

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.

Loss of control - on ground/waterTakeoff
Planning/decision - improperPilot in commandCause
Weather condition - unfavorable windFactor
Weather condition - high windFactor
Terrain condition - water,roughFactor
Weather condition - gustsFactor
Aircraft handling - not maintainedPilot in command
On ground/water encounter with terrain/waterTakeoff
Terrain condition - water,roughFactor
Nose overTakeoff

Analysis

The plt stated that during a 15 to 20 min period after he had landed, the wind velocity increased greatly. He managed to taxi the float plane to an area where he could takeoff into the wind. As the acft was on the step for takeoff, the left wing lifted as if it was hit by a gust of wind. Susequently, the right wing tip struck the water & the acft nosed over. The plt estimated the wind was from the east at 40 gusting to 50 KTS.

Aircraft

Registration
N99838
Reported as
de Havilland DHC-2
Category
Airplane
Serial number
792
Airframe hours
9,856
Engine
P&W R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Chisum Flying Service
Registered owner
Chisum Flying Service
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 20, 1985 · 31 hours before
Destination
CDV · Cordova, 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
46
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,695 total · 1,700 in this make and model · 4,550 as pilot in command · 181 in the last 90 days · 90 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 40 knots, gusting 50
Visibility
10 statute miles
Lowest ceiling
2,000 ft overcast
Temperature
48 °F, dew point 19 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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