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 1, 1983 · Grumman American AA-5A · N9945U

Livermore, CA

Overview

Report Status
Preliminary report
Event Type
Accident
Date
July 1, 1983
Injury Outcomes
1 injury (1 serious injury)
Location
Livermore, CA
Aircraft
Grumman American AA-5A
Tail Number
N9945U
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX83FA314

THE ACFT COLLIDED WITH RISING TERRAIN DURING A CROSS-COUNTRY IN IMC WEATHER. NO FLT PLAN WAS FILED FOR THE FLT. NO WEATHER BRIEFING WAS OBTAINED BY THE PILOT BEFORE TAKEOFF. THE DISTANCE TO BE FLOWN WAS 72 MILES AND THE PILOT FLEW THIS ROUTE ABOUT 3 TIMES A WEEK. THE FLT GOT WITHIN 5 MILES OF DESTINATION BEFORE COLLIDING WITH THE TERRAIN AT 1200 FT MSL. THE MOUNTAIN TOPS IN THE AREA GO AS HIGH AS 2500 FT MSL. THE PILOT WAS FLYING UP A CANYON IN LOW OVERCAST WEATHER CONDITIONS.

Full Narrative

THE ACFT COLLIDED WITH RISING TERRAIN DURING A CROSS-COUNTRY IN IMC WEATHER. NO FLT PLAN WAS FILED FOR THE FLT. NO WEATHER BRIEFING WAS OBTAINED BY THE PILOT BEFORE TAKEOFF. THE DISTANCE TO BE FLOWN WAS 72 MILES AND THE PILOT FLEW THIS ROUTE ABOUT 3 TIMES A WEEK. THE FLT GOT WITHIN 5 MILES OF DESTINATION BEFORE COLLIDING WITH THE TERRAIN AT 1200 FT MSL. THE MOUNTAIN TOPS IN THE AREA GO AS HIGH AS 2500 FT MSL. THE PILOT WAS FLYING UP A CANYON IN LOW OVERCAST WEATHER CONDITIONS.

Flight

Event TypeAccident
Event Time07:15 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftGrumman American AA-5A
Tail NumberN9945U
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2G · Reciprocating · 150
Seats4

People & Injuries

Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 58 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind210° @ 10 kt
Visibility10 sm
CeilingOvercast 1200 ft
Temperature / Dew Point68 F / 0 C
Altimeter29.00 inHg
Observation Time15:00
Weather SourceWFAC

Appendix: Source Data