Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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 25, 1986 · Piper PA-32-300 · N4083R
Riverside, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 25, 1986
Injury Outcomes
No injuries (1 uninjured)
Location
Riverside, CA
Aircraft
Piper PA-32-300
Tail Number
N4083R
Operator
Kenneth W Griffith
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX86LA343
WHILE EN ROUTE TO HAWTHORNE AIRPORT THE AIRCRAFT EXPERIENCED A TOTAL LOSS OF POWER. DURING A CIRCLING DESCENT THE PILOT ATTEMPTED TO RESTART THE ENGINE WITHOUT SUCCESS. THE AIRCRAFT COLLIDED WITH THE TERRAIN 500 FT SHORT OF RWY 27 AT RIVERSIDE AIRPORT. THE PILOT STATED THAT THE FUEL SELECTOR WAS ON THE LEFT MAIN WHEN THE ENGINE QUIT. EXAMINATION OF THE FUEL TANKS REVEALED THAT THE MAIN TANKS WERE EMPTY AND THE OUTBOARD TANKS CONTAINED 10 GALLONS OF FUEL EACH.
Full Narrative
WHILE EN ROUTE TO HAWTHORNE AIRPORT THE AIRCRAFT EXPERIENCED A TOTAL LOSS OF POWER. DURING A CIRCLING DESCENT THE PILOT ATTEMPTED TO RESTART THE ENGINE WITHOUT SUCCESS. THE AIRCRAFT COLLIDED WITH THE TERRAIN 500 FT SHORT OF RWY 27 AT RIVERSIDE AIRPORT. THE PILOT STATED THAT THE FUEL SELECTOR WAS ON THE LEFT MAIN WHEN THE ENGINE QUIT. EXAMINATION OF THE FUEL TANKS REVEALED THAT THE MAIN TANKS WERE EMPTY AND THE OUTBOARD TANKS CONTAINED 10 GALLONS OF FUEL EACH.
Flight
Event TypeAccident
Event Time04:45 PDT
Nearest AirportRiverside (0nm N)
Runway0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-32-300
Tail NumberN4083R
Aircraft CategoryAir
DamageSubstantial
OperatorKenneth W Griffith
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-540-K1A5 · Reciprocating · 300
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 28 · First Class
Conditions
ConditionsVMC
LightDark Night
WindCalm
Visibility5 sm
CeilingNone
Temperature / Dew Point70 F / 63 F
Altimeter29.00 inHg
Weather SourcePILO