ANC85LA080

NTSB accident investigation · Piper PA-18-150 · Iliamna, AK · May 11, 1985

Accident · Serious injuriesLimited investigationFinal report
Date
May 10, 1985, 18:00 local (May 11, 1985, 02:00 UTC)
Place
Iliamna, AK
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4621YPiper PA-18-150
Weather
Instrument (IMC) · Dusk
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
4491

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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Analysis

The pilot in command stated he was flying in whiteout conditions when he observed an island pass by the right side of the airplane. He started a right turn and the right wing struck the lake ice surface. He stated he did not realize he was that low.

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 - turn to reverse direction
Terrain condition - icyFactor
Preflight planning/preparation - inadequatePilot in commandFactor
Spatial disorientationPilot in commandFactor
Terrain condition - snow coveredFactor
In-flight planning/decision - inadequatePilot in commandCause
Weather condition - snowFactor
Weather evaluation - inadequatePilot in commandCause
Weather condition - whiteoutFactor
Vfr flight into imc - attemptedPilot in commandCause
Light condition - duskFactor
Judgment - poorPilot in commandFactor

Aircraft

Registration
N4621Y
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8942
Airframe hours
1,742
Engine
Lycoming O-320-A2A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Robert Mieczkowski
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 1984
Departed
AKN · King Salmon, AK
Destination
ILI · Iliamna, AK

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
33
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,369 total · 1,369 in this make and model · 1,369 as pilot in command · 50 in the last 90 days · 8 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Dusk
Visibility
1 statute miles