DEN84LA060

NTSB accident investigation · Cessna 425 · Big Piney, WY · December 24, 1983

Accident · No injuriesLimited investigationFinal report
Date
December 24, 1983, 12:00 local (19:00 UTC)
Place
Big Piney, WY
Injuries
6 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6884GCessna 425
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19831224075859A
Case key
16316

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 - flare/touchdown
Weather condition - low ceilingFactor
Weather condition - obscurationFactor
Weather condition - fogFactor
Weather condition - snowFactor
Weather condition - whiteoutFactor
Airport facilities,runway/landing area condition - snow coveredFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Overconfidence in personal abilityPilot in commandFactor
Proper alignment - not attainedPilot in commandCause
Visual/aural perceptionPilot in commandFactor
On ground/water encounter with terrain/waterLanding - flare/touchdown
Airport facilities,runway/landing area condition - snowbankFactor

Analysis

Prior to departure the plt telephoned the FBO at Big Piney arpt. He was advised of the poor wx conditions that existed at the arpt & was also advised not to land at the arpt. The acft was later observed to land at Big Piney arpt, touch down on the snow covered rwy 31 & abruptly turn 90 deg left into a 3-FT high snowbank. The plt said that he encountered a whiteout condition which made it impossible to distinguish features.

Aircraft

Registration
N6884G
Reported as
Cessna 425
Category
Airplane
Serial number
425-0136
Airframe hours
320
Engine
P&W PT6A-112, 500 horsepower, turbo prop
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Petro Corp.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 29, 1983 · 25 hours before
Departed
SLC · Salt Lake City, UT
Flight plan
IFR
Airport
BPI · Big Piney Municipal, runway 31, 6,800 × 75 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
5,130 total · 37 in this make and model · 4,940 as pilot in command · 155 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
Variable at 9 knots
Visibility
2 statute miles
Lowest ceiling
500 ft
Temperature
-0 °F
Observed at
RKS

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.