ANC90LA087

NTSB accident investigation · Cessna 180 · Deshka River, AK · June 11, 1990

Accident · No injuriesLimited investigationFinal report
Date
June 10, 1990, 18:15 local (Jun 11, 1990, 02:15 UTC)
Place
Deshka River, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7939VCessna 180
Weather
Visual (VMC) · Day
Status
Completed · report August 28, 1992
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19900610019939A
Case key
5379

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

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Probable cause

The pilot-in-command's failure to maintain directional control.

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/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in command
Nose overLanding - roll

Analysis

After touchdown the pilot lost directional control of the airplane. The airplane then nosed over on to its back.

Aircraft

Registration
N7939V
Reported as
Cessna 180
Category
Airplane
Serial number
18051839
Engine
Continental O-470-S, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
David Tredway
Registered owner
David Tredway
Airworthiness certificate
Standard, Normal
Departed
ANC · Anchorage, AK
Airport
Silver Salmon, runway 9, 2,000 × 80 ft, dirt

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
47
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
500 total · 400 in this make and model · 400 as pilot in command · 15 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 39 °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.

Other investigations on N7939V · 3

Matched to the same aircraft by N-number and date.