ANC89LA054

NTSB accident investigation · Cessna 180-A · Skwentna, AK · March 25, 1989

Accident · No injuriesLimited investigationFinal report
Date
March 25, 1989, 13:00 local (17:00 UTC)
Place
Skwentna, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9685BCessna 180-A
Weather
Visual (VMC) · Day
Status
Completed · report September 28, 1990
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890325004659A
Case key
5174

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's failure to maintain directional control of the airplane during the takeoff run. A contributing factor to the accident is the pilot's selection of an unsuitable landing/takeoff site.

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 - roll/run
Directional control - not maintainedPilot in commandCause
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandFactor
Nose overTakeoff - roll/run

Analysis

The private pilot was attempting to land his ski equipped airplane at an off-airport landing site in deep wet snow. During the landing roll, the airplane began to sink into the snow. He elected to take off and return for another landing in the tracks he had just made. A few seconds prior to reaching lift-off speed, the right main ski hit a compacted snow machine track, causing the pilot to lose directional control. The pilot was unable to regain control and the airplane ultimately nosed over onto its back, sustaining substantial damage. The pilot believes that the accident could have been avoided had he reduced power and turned around in his landing tracks prior to attempting the takeoff.

Aircraft

Registration
N9685B
Reported as
Cessna 180-A
Category
Airplane
Serial number
32982
Airframe hours
3,212
Engine
Continental O-470-L, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Ivey, Gerald H.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 5, 1988 · 54 hours before
Departed
LHD · Anchorage, AK
Destination
Hewett Lake, 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
51
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,108 total · 507 in this make and model · 1,045 as pilot in command · 14 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
60 statute miles
Temperature
39 °F

FAA reports on this event · 1

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