Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

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.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

July 11, 1987 · Cessna 175 · N9201B

Kalispell, MT

Overview

Report Status
Preliminary report
Event Type
Accident
Date
July 11, 1987
Injury Outcomes
3 injuries (3 minor injuries)
Location
Kalispell, MT
Aircraft
Cessna 175
Tail Number
N9201B
Operator
Walter Steinbrink
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DEN87LA179

THE PVT PLT WAS ON A X-COUNTRY FLIGHT. THE ENGINE BEGAN RUNNING ROUGH, MADE A 'BANG' SOUND AND LOST PARTIAL POWER. SMOKE ENTERED THE COCKPIT, OIL PRESSURE WAS LOST AND THE PLT INITIATED AN EMERGENCY LANDING. THE ACFT LDG GR STRUCK POWERLINES ON APPROACH TO A DIRT ROAD, APPARENTLY DAMAGING THE ACFT BRAKES. AFTER LANDING, THE ACFT BRAKES WERE INOPERATIVE. THE ACFT DEPARTED THE ROAD TO THE LEFT, WENT THROUGH A FENCE, AND STRUCK A ROCK. THE NOSE GEAR WAS SHEARED OFF AND THE ACFT NOSED OVER. A POST-ACCIDENT INSPECTION REVEALED THAT THE NUMBER TWO PISTON HAD DISINTEGRATED.

Full Narrative

THE PVT PLT WAS ON A X-COUNTRY FLIGHT. THE ENGINE BEGAN RUNNING ROUGH, MADE A 'BANG' SOUND AND LOST PARTIAL POWER. SMOKE ENTERED THE COCKPIT, OIL PRESSURE WAS LOST AND THE PLT INITIATED AN EMERGENCY LANDING. THE ACFT LDG GR STRUCK POWERLINES ON APPROACH TO A DIRT ROAD, APPARENTLY DAMAGING THE ACFT BRAKES. AFTER LANDING, THE ACFT BRAKES WERE INOPERATIVE. THE ACFT DEPARTED THE ROAD TO THE LEFT, WENT THROUGH A FENCE, AND STRUCK A ROCK. THE NOSE GEAR WAS SHEARED OFF AND THE ACFT NOSED OVER. A POST-ACCIDENT INSPECTION REVEALED THAT THE NUMBER TWO PISTON HAD DISINTEGRATED.

Flight

Event TypeAccident
Event Time10:00 MDT
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 175
Tail NumberN9201B
Aircraft CategoryAir
DamageSubstantial
OperatorWalter Steinbrink
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · GO-300-A · Reciprocating · 175
Seats4

People & Injuries

Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 58 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 10 kt
Visibility100 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data