SEA84FA111

NTSB accident investigation · Stinson 108-3 · Portland, OR · May 20, 1984

Accident · FatalField investigationFinal report
Date
May 19, 1984, 18:20 local (May 20, 1984, 01:20 UTC)
Place
Portland, OR
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N20QStinson 108-3
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840519019389A
Case key
39805

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.

In flight encounter with weatherCruise
Flight into known adverse weather - initiatedPilot in commandFactor
Weather condition - cloudsFactor
Terrain condition - risingFactor
Weather condition - low ceilingFactor
Weather condition - fogFactor
Weather condition - rainFactor
Weather condition - obscurationFactor
Vfr flight into imc - continuedPilot in commandCause
In flight collision with objectCruise
Object - electrical tower(marked)
Object - guy wireFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt was briefed on the weather along his intended route of flt & VFR flt was not recommended. The acft departed vancouver, WA, and flew to tigard, OR. It was observed to depart tigard at about 1810 PDT. Numerous witnesses reported that at about 1815, they saw an acft maneuvering at low alt near a highway, then it disappeared while flying toward rising terrain. At about 1820, residents at or near the crest of the hills heard the acft crash. The acft had hit supporting guy wire(s) for tower(s)s at a radio/tv antenna farm. Impact occurred at about 250 ft AGL. Reportedly, the towers were not visible due to clouds & fog.

Aircraft

Registration
N20Q
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-4661
Engine
Franklin 6A-350-01, 220 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Charles E. Bong
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 12, 1983 · 103 hours before
Departed
5S3 · Tigard, OR
Destination
0S6 · Orchard, WA

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
30
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
151 total · 103 in this make and model · 113 as pilot in command · 22 in the last 90 days · 2 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
150° at 10 knots
Temperature
55 °F, dew point 54 °F
Altimeter
29.00 inHg
Observed at
HBO, 9 nm away

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 N20Q · 1

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