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

May 27, 1991 · Cessna R172K · N736MR

Santa Clarita, CA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
May 27, 1991
Injury Outcomes
No injuries (4 uninjured)
Location
Santa Clarita, CA
Aircraft
Cessna R172K
Tail Number
N736MR
Operator
San Val Flying Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX91LA227

ACCORDING TO THE OPERATOR, THE PILOT LEFT VAN NUYS ON THE AFTERNOON OF MAY 24, 1991, ENROUTE TO LAKE HAVASU FOR THE WEEKEND. AT THE TIME THE PILOT ACCEPTED THE AIRCRAFT, THE FUEL LEVEL WAS SOMETHING LESS THAN FULL. AT LAKE HAVASU, THE PILOT LOADED 11.8 GALLONS OF FUEL ON BOARD THE AIRCRAFT. EXAMINATION OF THE AIRCRAFT AT THE ACCIDENT SITE BY FAA PERSONNEL FROM THE VAN NUYS, CALIFORNIA, FLIGHT STANDARDS DISTRICT OFFICE REVEALED THAT ONLY RESIDUAL FUEL WAS LEFT IN THE FUEL TANKS.

NTSB Probable Cause

FUEL EXHAUSTION DUE TO THE FAILURE OF THE PILOT TO PROPERLY PERFORM PREFLIGHT PLANNING AND TO ENSURE THAT AN ADEQUATE FUEL SUPPLY EXISTED FOR THE FLIGHT.

Full Narrative

ACCORDING TO THE OPERATOR, THE PILOT LEFT VAN NUYS ON THE AFTERNOON OF MAY 24, 1991, ENROUTE TO LAKE HAVASU FOR THE WEEKEND. AT THE TIME THE PILOT ACCEPTED THE AIRCRAFT, THE FUEL LEVEL WAS SOMETHING LESS THAN FULL. AT LAKE HAVASU, THE PILOT LOADED 11.8 GALLONS OF FUEL ON BOARD THE AIRCRAFT. EXAMINATION OF THE AIRCRAFT AT THE ACCIDENT SITE BY FAA PERSONNEL FROM THE VAN NUYS, CALIFORNIA, FLIGHT STANDARDS DISTRICT OFFICE REVEALED THAT ONLY RESIDUAL FUEL WAS LEFT IN THE FUEL TANKS.

Flight

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

Aircraft

AircraftCessna R172K
Tail NumberN736MR
Aircraft CategoryAir
DamageSubstantial
OperatorSan Val Flying Service
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-360-K · Reciprocating · 195
Seats4

People & Injuries

Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 30 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind180° @ 10 kt, gusting 15 kt
Visibility5 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data