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NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

June 15, 1991 · Piper PA-18-150 · N4090Z

Nephi, UT

Overview

Report Status

Probable Cause

Event Type

Accident

Date

June 15, 1991

Injury Outcomes

2 injuries (2 fatalities)

Location

Nephi, UT

Aircraft

Piper PA-18-150

Tail Number

N4090Z

Operator

Earl H Moore

Injuries

Fatal

Aircraft Damage

Destroyed

NTSB Number

SEA91FA131

DURING A FLIGHT FOR THE PURPOSE OF INSPECTING POWER LINES AT A LOW ALTITUDE IN HILLY TO MOUNTAINOUS TERRAIN, THE AIRPLANE COLLIDED WITH THE TERRAIN IN AN UNCONTROLLED ATTITUDE.

NTSB Probable Cause

POOR INFLIGHT PLANNING AND DECISIONS. FACTORS TO THE ACCIDENT WERE: AN UNCONTROLLED STALL/SPIN, AND INADEQUATE AIRSPEED.

Full Narrative

DURING A FLIGHT FOR THE PURPOSE OF INSPECTING POWER LINES AT A LOW ALTITUDE IN HILLY TO MOUNTAINOUS TERRAIN, THE AIRPLANE COLLIDED WITH THE TERRAIN IN AN UNCONTROLLED ATTITUDE.

Flight

Event TypeAccident

Event Time15:10 MDT

Nearest Airport0nm N

Runway0

Flight Plan FiledNone

Aircraft FireGrd

Aircraft ExplosionGrd

Aircraft

AircraftPiper PA-18-150

Tail NumberN4090Z

Aircraft CategoryAir

DamageDestroyed

OperatorEarl H Moore

Operating RulePart 91

Engines1

Engine TypeReciprocating

Engine DetailsLycoming · O-320 · Reciprocating · 150

Seats2

People & Injuries

Injury Summary2 injuries (2 fatalities)

Fatal2

Serious0

Minor0

Uninjured0

Total2

Crew 1Age 48 · Second Class

Conditions

ConditionsVMC

LightDaylight

WindCalm

Visibility30 sm

CeilingNone

Temperature / Dew Point0 C

Altimeter0

Weather SourceWIT

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June 15, 1991 · Piper PA-18-150 · N4090Z

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