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 25, 1991 · Cessna 152 · N320SV

Avalon, CA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 25, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Avalon, CA
Aircraft
Cessna 152
Tail Number
N320SV
Operator
John M Wells
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
LAX91LA371

THE PILOT OF A CESSNA 152 EXPERIENCED A LOSS OF ENGINE POWER AT 2,500 FEET MSL WHILE ENROUTE TO AVALON, CALIFORNIA. THE PILOT DITCHED IN THE OCEAN AND THE AIRPLANE SANK IN DEEP WATER AND WAS NOT RECOVERED. THE PILOT REPORTED THAT HIS ATTEMPTS TO RESTART THE ENGINE WERE UNSUCCESSFUL. THE AIRPLANE WAS REFUELED WITH 10 GALLONS OF AVIATION FUEL ABOUT TWO WEEKS BEFORE AND WAS AIRBORNE ABOUT 15 MINUTES BEFORE THE ACCIDENT.

NTSB Probable Cause

A LOSS OF ENGINE POWER FOR UNDETERMINED REASONS AND SUBSEQUENT DITCHING WHILE FLYING OVER THE OCEAN.

Full Narrative

THE PILOT OF A CESSNA 152 EXPERIENCED A LOSS OF ENGINE POWER AT 2,500 FEET MSL WHILE ENROUTE TO AVALON, CALIFORNIA. THE PILOT DITCHED IN THE OCEAN AND THE AIRPLANE SANK IN DEEP WATER AND WAS NOT RECOVERED. THE PILOT REPORTED THAT HIS ATTEMPTS TO RESTART THE ENGINE WERE UNSUCCESSFUL. THE AIRPLANE WAS REFUELED WITH 10 GALLONS OF AVIATION FUEL ABOUT TWO WEEKS BEFORE AND WAS AIRBORNE ABOUT 15 MINUTES BEFORE THE ACCIDENT.

Flight

Event TypeAccident
Event Time14:45 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 152
Tail NumberN320SV
Aircraft CategoryAir
DamageDestroyed
OperatorJohn M Wells
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 110
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 32 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind240° @ 10 kt, gusting 10 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data