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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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September 18, 1989 · Mooney M20C · N3456X

Neihart, MT

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 18, 1989
Injury Outcomes
1 injury (1 serious injury)
Location
Neihart, MT
Aircraft
Mooney M20C
Tail Number
N3456X
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
DEN89LA221

THE INSTRUMENT RATED COMMERCIAL PILOT REPORTED THAT HE WAS CRUISING AT 14,500 FEET WHEN HE ENCOUNTERED CLOUDS. HE DESCENDED TO 12,500 FEET AND THEN TO 11,000 FEET IN AN EFFORT TO AVOID THE WEATHER. HE STATED 'I DESCENDED DOWN TO ELEVEN THOUSAND AND THE TREES CAME RIGHT UP ON ME. I WAS VFR, DIDN'T FILE A FLIGHT PLAN . . .' ELEVATION OF THE CRASH SITE WAS 9175 FEET.

NTSB Probable Cause

VFR FLIGHT BY THE PILOT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND HIS FAILURE TO MAINTAIN SUFFICIENT ALTITUDE. RELATED FACTORS WERE: THE HIGH TERRAIN AND ADVERSE WEATHER CONDITIONS.

Full Narrative

THE INSTRUMENT RATED COMMERCIAL PILOT REPORTED THAT HE WAS CRUISING AT 14,500 FEET WHEN HE ENCOUNTERED CLOUDS. HE DESCENDED TO 12,500 FEET AND THEN TO 11,000 FEET IN AN EFFORT TO AVOID THE WEATHER. HE STATED 'I DESCENDED DOWN TO ELEVEN THOUSAND AND THE TREES CAME RIGHT UP ON ME. I WAS VFR, DIDN'T FILE A FLIGHT PLAN . . .' ELEVATION OF THE CRASH SITE WAS 9175 FEET.

Flight

Event TypeAccident
Event Time07:22 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMooney M20C
Tail NumberN3456X
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1D · Reciprocating · 180
Seats4

People & Injuries

Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 39 · Second Class

Conditions

ConditionsIMC
LightDaylight
Wind310° @ 9 kt
CeilingNone
Temperature / Dew Point0 C / 10 C
Altimeter29.00 inHg
Observation Time13:27
Weather SourceWFAC

Appendix: Source Data