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 4, 1991 · Aero Commander 500-698 · N3840C
Atlantic Ocean, AO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 4, 1991
Injury Outcomes
4 injuries (1 serious injury, 3 minor injuries)
Location
Atlantic Ocean, AO
Aircraft
Aero Commander 500-698
Tail Number
N3840C
Operator
Palm Beach Aviation
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
MIA91LA193
WHILE IN LEVEL FLIGHT THE PILOT REPORTED BOTH ENGINES FAILED AND ALL ATTEMPTS TO RESTART THEM WERE UNSUCCESSFUL. THE PILOT THEN DITCHED THE AIRPLANE IN THE OCEAN, AND IT SANK AND WAS NOT RECOVERED. THE PILOT AND THREE PASSENGERS WERE RESCUED 2 DAYS LATER. ACCORDING TO FUEL CONSUMPTION ESTIMATES THERE SHOULD HAVE BEEN ADEQUATE FUEL FOR THE ENTIRE FLIGHT AND A RESERVE.
NTSB Probable Cause
AN INFLIGHT LOSS OF POWER OF BOTH ENGINES FOR UNDETERMINED REASONS FOLLOWED BY A DITCHING IN THE OCEAN.
Full Narrative
WHILE IN LEVEL FLIGHT THE PILOT REPORTED BOTH ENGINES FAILED AND ALL ATTEMPTS TO RESTART THEM WERE UNSUCCESSFUL. THE PILOT THEN DITCHED THE AIRPLANE IN THE OCEAN, AND IT SANK AND WAS NOT RECOVERED. THE PILOT AND THREE PASSENGERS WERE RESCUED 2 DAYS LATER. ACCORDING TO FUEL CONSUMPTION ESTIMATES THERE SHOULD HAVE BEEN ADEQUATE FUEL FOR THE ENTIRE FLIGHT AND A RESERVE.
Flight
Event TypeAccident
Event Time21:22 UTC
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAero Commander 500-698
Tail NumberN3840C
Aircraft CategoryAir
DamageDestroyed
OperatorPalm Beach Aviation
Operating RulePart 135
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · O-540-A2B · Reciprocating · 250
Seats7
People & Injuries
Injury Summary4 injuries (1 serious injury, 3 minor injuries)
Fatal0
Serious1
Minor3
Uninjured0
Total4
Crew 1Age 48 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 13 kt
Visibility9 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time20:51
Weather SourceWFAC