ANC93LA041

NTSB accident investigation · Cessna 180H · Port Alsworth, AK · March 8, 1993

Accident · Serious injuriesLimited investigationFinal report
Date
March 8, 1993, 15:30 local (19:30 UTC)
Place
Port Alsworth, AK
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9737GCessna 180H
Weather
Instrument (IMC) · Day
Status
Completed · report November 3, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930308005799A
Case key
5868

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 non instrument rated pilot in command entering instrument meteorological conditions. A factor in the accident was the snow/whiteout condition.

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/waterCruise
Vfr flight into imc - performedPilot in commandCause
Weather condition - snowFactor
Weather condition - whiteoutFactor

Analysis

The non instrument rated private pilot reported that he entered whiteout conditions caused by blowing snow shortly after becoming airborne and unintentionally allowed the plane to descend and collide with the frozen surface of the lake. The pilot further reported that he did not have a current biennial flight review (bfr) or flight medical and that he did not recall having received instruction on how to execute a 180 degree change of direction turn using only the basic (partial panel) flight instruments.

Aircraft

Registration
N9737G
Reported as
Cessna 180H
Category
Airplane
Serial number
18052237
Airframe hours
2,400
Engine
Continental O-470R, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hornberger, Charles G.
Registered owner
Hornberger, Charles G.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 1, 1992 · 127 hours before
Destination
Koksetna Lodge, AK

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
59
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Seat
Left
Flight hours
4,000 total · 1,400 in this make and model · 4,000 as pilot in command

Weather

Conditions
Instrument (IMC) · Day
Wind
230° at 10 knots
Visibility
2 statute miles
Lowest ceiling
1,000 ft overcast
Temperature
30 °F

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 N9737G · 1

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