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

August 11, 1989 · Aero Commander S2R · N4072X

Tranquillity, CA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 11, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Tranquillity, CA
Aircraft
Aero Commander S2R
Tail Number
N4072X
Operator
Mid-Cal Ag Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX89DVA09

THE PILOT WAS COMPLETING A NIGHT AERIAL APPLICATION FLIGHT AND WAS LANDING AT A PRIVATE AIRSTRIP. ON TOUCHDOWN THE AIRPLANE STRUCK SOME WEEDS CAUSING THE AIRPLANE TO EXIT THE RUNWAY ENVIRONMENT MAKING DIRECTIONAL CONTROL NOT POSSIBLE. BOTH MAIN LANDING GEARS COLLAPSED WHEN THE AIRPLANE ENTERED THE SOFT TERRAIN ADJACENT TO THE RUNWAY.

NTSB Probable Cause

THE PILOT'S VISUAL LOOK-OUT WAS INADEQUATE AND THAT HE FAILED TO SEE THE HIGH VEGETATION UPON LANDING. FACTORS RELATING TO THIS ACCIDENT ARE DARK NIGHT AND HIGH VEGETATION.

Full Narrative

THE PILOT WAS COMPLETING A NIGHT AERIAL APPLICATION FLIGHT AND WAS LANDING AT A PRIVATE AIRSTRIP. ON TOUCHDOWN THE AIRPLANE STRUCK SOME WEEDS CAUSING THE AIRPLANE TO EXIT THE RUNWAY ENVIRONMENT MAKING DIRECTIONAL CONTROL NOT POSSIBLE. BOTH MAIN LANDING GEARS COLLAPSED WHEN THE AIRPLANE ENTERED THE SOFT TERRAIN ADJACENT TO THE RUNWAY.

Flight

Event TypeAccident
Event Time23:15 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftAero Commander S2R
Tail NumberN4072X
Aircraft CategoryAir
DamageSubstantial
OperatorMid-Cal Ag Aviation
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340-AN1 · Reciprocating · 600
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 51 · Second Class

Conditions

ConditionsVMC
LightDark Night
WindCalm
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data