ANC85FA135

NTSB accident investigation · Stinson SR6 · Port Lions, AK · July 23, 1985

Accident · FatalField investigationFinal report
Date
July 23, 1985, 10:38 local (18:38 UTC)
Place
Port Lions, AK
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N15120Stinson SR6
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
4422

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 - normal
Preflight planning/preparation - improperPilot in commandCause
Weather evaluation - not followedPilot in commandCause
Vfr flight into imc - performedPilot in commandCause
Weather condition - low ceilingFactor
Weather condition - fogFactor
Loss of control - in flightCruise - normal
Spatial disorientationPilot in commandCause
Lack of total instrument timePilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot continued the flight into less than visual conditions; became spatially disoriented and crashed while the aiplane was out of control.

Aircraft

Registration
N15120
Reported as
Stinson SR6
Category
Airplane
Serial number
9611
Engine
Lycoming R-680-B6, 245 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Business · Part 91
Registered owner
Lewis Hall Thompson
Departed
Chirikof Island, AK
Destination
ADQ · Kodiak Nas, AK
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
84 total · 8 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
90° at 4 knots
Lowest ceiling
100 ft
Temperature
54 °F, dew point 52 °F
Altimeter
29.00 inHg
Observed at
ODK, 18 nm away