ANC86LA091

NTSB accident investigation · Cessna 170A · Tyonek, AK · June 27, 1986

Accident · No injuriesLimited investigationFinal report
Date
June 27, 1986, 15:00 local (23:00 UTC)
Place
Tyonek, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9033ACessna 170A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19860627028479A
Case key
4687

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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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
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Ground loop/swerve - uncontrolledPilot in commandCause
Terrain condition - loose gravel/sandyFactor

Analysis

The relatively inexperienced private pilot attempted to land his airplane on a gravel beach as the tide was receding. He failed to maintain directional control and the airplane was substantially damaged in the ensuing ground loop.

Aircraft

Registration
N9033A
Reported as
Cessna 170A
Category
Airplane
Serial number
18788
Airframe hours
3,922
Engine
Continental C-145-2, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Bonnie J. Nichols
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 23, 1985 · 22 hours before
Departed
SXQ · Soldotna, AK
Destination
Chuitna River, 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
31
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
127 total · 14 in this make and model · 69 as pilot in command · 13 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 2 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
64 °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.