ANC91LA080

NTSB accident investigation · Cessna 170A · Kakeen, AK · June 23, 1991

Accident · No injuriesLimited investigationFinal report
Date
June 23, 1991, 15:00 local (23:00 UTC)
Place
Kakeen, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5739CCessna 170A
Weather
Visual (VMC) · Day
Status
Completed · report May 7, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
5564

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's failure to maintain directional control of the airplane during the aborted takeoff. Contributing to the accident was the soft, rough, and uneven terrain.

Analysis

During the aborted takeoff, the pilot lost directional control of the airplane because the left main tire dug into the soft sand. The airplane then nosed over on its back.

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 - aborted
Terrain condition - softFactor
Directional control - not maintainedPilot in commandCause
Terrain condition - rough/unevenFactor
Nose overTakeoff - aborted

Aircraft

Registration
N5739C
Reported as
Cessna 170A
Category
Airplane
Serial number
19693
Airframe hours
4,000
Engine
Continental C-145-2H, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
William Kirk
Registered owner
William Kirk
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 1, 1990 · 50 hours before
Departed
SNK · Naknek, AK
Airport
NONE · Kakeen, runway 6, 1,200 × 40 ft, gravel

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
31
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
550 total · 50 in this make and model · 550 as pilot in command · 50 in the last 90 days · 20 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 46 °F
Altimeter
29.00 inHg