ANC87LA018

NTSB accident investigation · Cessna U206G · Uganik Pass, AK · December 4, 1986

Accident · No injuriesLimited investigationFinal report
Date
December 4, 1986, 16:10 local (20:10 UTC)
Place
Uganik Pass, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4736UCessna U206G
Weather
Instrument (IMC) · Night/dark
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19861204067979A
Case key
4811

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/waterManeuvering
Terrain condition - mountainous/hillyFactor
In-flight planning/decision - inadequatePilot in commandCause
Improper use of procedurePilot in commandFactor
Terrain condition - rough/unevenFactor
Weather evaluation - not performedPilot in commandCause
Weather condition - cloudsCause
Procedures/directives - not followedPilot in commandCause
Weather condition - whiteoutCause
Meteorological service - not obtainedPilot in commandCause

Analysis

The pilot stated that he encountered a complete white-out condition; he started a turn to the left and struck the top of the ridge at the 1780 foot level.

Aircraft

Registration
N4736U
Reported as
Cessna U206G
Category
Airplane
Serial number
U20605072
Airframe hours
3,525
Engine
Continental IO-520F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Island Air Service
Registered owner
William Ellis Hall
Airworthiness certificate
Standard, Utility
Last inspection
100 hour · March 4, 1986 · 40 hours before
Departed
ADQ · Kodiak, AK
Destination
Zachary Bay, AK
Flight plan
VFR
Airport
1

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
43
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
6,050 total · 3,946 in this make and model · 3,905 as pilot in command · 175 in the last 90 days · 90 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
Calm
Lowest ceiling
2,500 ft overcast
Temperature
28 °F, dew point 27 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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