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Aviation safety reports, made easier to study

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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March 14, 1994 · Maule M-4-220C · N40318

Dubois, ID

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
March 14, 1994
Injury Outcomes
No injuries (2 uninjured)
Location
Dubois, ID
Aircraft
Maule M-4-220C
Tail Number
N40318
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA94LA081

WHILE MANEUVERING AT LOW LEVEL IN ORDER TO LOOK AT A POSSIBLE FUTURE LANDING SITE, THE AIRCRAFT IMPACTED A POWER LINE IN THE SUBDUED LIGHT OF DUSK. THE PILOT SAID THAT HE HAD NOT SEEN THE WIRE PRIOR TO THE IMPACT.

NTSB Probable Cause

THE PILOT'S INADEQUATE VISUAL LOOKOUT. FACTORS INCLUDE LIGHT CONDITIONS AT DUSK.

Full Narrative

On March 13, 1994, approximately 1800 mountain standard time (MST), a Maule M-4-220C, N40318, collided with a power line while maneuvering about seven miles west of Dubois, Idaho. Neither the private pilot nor his passenger were injured, but the aircraft sustained substantial damage. The personal pleasure flight, which departed Dubois Municipal Airport, Dubois, Idaho, about 10 minutes earlier, was in visual meteorological conditions at the time of the accident. No flight plan had been filed, and the ELT, which was activated by the subsequent impact with the ground, was turned off at the scene. According to the pilot, he was maneuvering at low level to take a look at a future landing site when he impacted a power line. He said that he did not see the wire prior to the impact.

Flight

Event TypeAccident
Event Time18:00 MST
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMaule M-4-220C
Tail NumberN40318
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A-350C · Reciprocating · 220
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 22 · Second Class

Conditions

ConditionsVMC
LightDusk
Wind360° @ 5 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data