SEA90LA062

NTSB accident investigation · Stinson 108-2 · Hillsboro, OR · April 5, 1990

Accident · No injuriesLimited investigationFinal report
Date
April 5, 1990, 00:23 local (07:23 UTC)
Place
Hillsboro, OR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N9443KStinson 108-2
Weather
Visual (VMC) · Night/bright
Status
Completed · report February 12, 1993
Report
Approved by Office Director
FAA report
19900405007799A
Case key
41184

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

Pilot displayed poor starting procedures by proceeding with known deficiencies with the parking brake and the inadequacies of the tie down. The pilot did not attain assistance for this procedure which resulted in the airplane getting away and colliding with two parked airplanes.

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/waterTaxi
Landing gear,parking brake - inadequateFactor
Tie down - inadequateFactor
Proper assistance - not attainedPilot in commandFactor
Starting procedure - poorPilot in commandCause
Operation with known deficiencies in equipmentPilot in commandFactor
On ground/water collision with objectTaxi
Object - aircraft parked/standingFactor

Analysis

The pilot reported that he had secured the tail of the airplane with a tie down chain, set the parking brake and adjusted the throttle to 550 rpm's. the pilot then proceeded to hand prop the engine. The engine started and the pilot began to walk around the airplane when he noted that the airplane started forward movement. The airplane overrode the parking brake and broke the tie down chain. The pilot slipped and was unable to get inside the cockpit. The airplane proceeded forward and collided with two parked airplanes.

Aircraft

Registration
N9443K
Reported as
Stinson 108-2
Category
Airplane
Serial number
108-2443
Airframe hours
2,800
Engine
Franklin 6A4-165-B3, 165 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Larry & Danna Knox
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 14, 1989 · 34 hours before
Airport
HIO · Hillsboro

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
49
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
350 total · 45 in this make and model · 310 as pilot in command · 22 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/bright
Wind
Calm
Lowest ceiling
None
Temperature
50 °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 N9443K · 1

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