SEA86FA233

NTSB accident investigation · Cessna 180 · Wallace, ID · August 31, 1986

Accident · FatalField investigationFinal report
Date
August 31, 1986, 14:00 local (21:00 UTC)
Place
Wallace, ID
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4703BCessna 180
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
40303

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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 collision with terrain/waterCruise
Vfr flight into imc - attemptedPilot in commandCause
Preflight briefing service - disregardedPilot in commandCause
In-flight briefing service - not usedPilot in commandCause
Weather condition - cloudsFactor
Weather condition - fogFactor
Weather condition - obscurationFactor
Terrain condition - mountainous/hillyFactor

Analysis

Plt received wx brief, advised VFR for proposed flt. Plt filed VFR flt plan and departed. Wreckage located 2 days later at crest of mountain pass.

Aircraft

Registration
N4703B
Reported as
Cessna 180
Category
Airplane
Serial number
31601
Airframe hours
4,894
Engine
Continental O-470-K, 230 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Edgar E. Ribi
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 20, 1986 · 20 hours before
Departed
BFI · Seattle, WA
Destination
6S5 · Hamilton, MT
Flight plan
VFR

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
65
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
2,700 total · 25 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Visibility
4 statute miles
Temperature
57 °F, dew point 55 °F
Observed at
S06, 5 nm away