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

April 3, 1987 · North American Navion · N91735

Los Alamos, NM

Overview

Report Status
Preliminary report
Event Type
Accident
Date
April 3, 1987
Injury Outcomes
No injuries (2 uninjured)
Location
Los Alamos, NM
Aircraft
North American Navion
Tail Number
N91735
Operator
Richard B Olwin
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN87LA079

THE INSTRUCTOR PLT WAS GIVING CROSS WIND INSTRUCTION TO A PRE-SOLO STUDENT PLT. DURING A CROSS WIND LANDING ATTEMPT, THE ACFT TOUCHED DOWN HARD, BREAKING OFF THE RIGHT MAIN LANDING GEAR. THE WINDS WERE OBSERVED AT THE TIME OF TOUCHDOWN TO BE 150 DEGREES AT 12 KNOTS, A QUARTERING TAIL WIND FOR RWY 27. AFTER LANDING, THE ACFT SKIDDED TO THE RIGHT SIDE OF THE LANDING AREA UNTIL COMING TO REST IN THE ARPT BOUNDARY FENCE.

Full Narrative

THE INSTRUCTOR PLT WAS GIVING CROSS WIND INSTRUCTION TO A PRE-SOLO STUDENT PLT. DURING A CROSS WIND LANDING ATTEMPT, THE ACFT TOUCHED DOWN HARD, BREAKING OFF THE RIGHT MAIN LANDING GEAR. THE WINDS WERE OBSERVED AT THE TIME OF TOUCHDOWN TO BE 150 DEGREES AT 12 KNOTS, A QUARTERING TAIL WIND FOR RWY 27. AFTER LANDING, THE ACFT SKIDDED TO THE RIGHT SIDE OF THE LANDING AREA UNTIL COMING TO REST IN THE ARPT BOUNDARY FENCE.

Flight

Event TypeAccident
Event Time11:47 MST
Nearest AirportLos Alamos (0nm N)
Runway27
Runway Length5543 ft
Runway Width130 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftNorth American Navion
Tail NumberN91735
Aircraft CategoryAir
DamageSubstantial
OperatorRichard B Olwin
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · E 225 4 · Reciprocating · 225
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 72 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind150° @ 12 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point46 / 25 C
Altimeter30.00 inHg
Observation Time18:47
Weather SourceWFAC

Appendix: Source Data