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

January 15, 1991 · Holmes Special S2C Special S2 · N484MH

Ellendale, DE

Overview

Report Status
Probable Cause
Event Type
Accident
Date
January 15, 1991
Injury Outcomes
2 injuries (2 serious injuries)
Location
Ellendale, DE
Aircraft
Holmes Special S2C Special S2
Tail Number
N484MH
Operator
Charles R Bradley
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
BFO91LA023

A WITNESS REPORTED THE AIRPLANE WAS DOING AEROBATIC MANUEVERS WHEN IT CRASHED. ACCORDING TO A WITNESS, THE AIRPLANE WAS ABOUT 2000 FEET MSL WHEN HE SAW THE AIRPLANE ROLL TWO AND ONE HALF TIMES, FINISHING IN AN INVERTED ATTITUDE. THE AIRPLANE THEN ENTERED A FLAT SPIN BEFORE IT PITCHED DOWN AND DESCENDED. THE WITNESS STATED THE AIRPLANE STOPPED SPINNING AND WAS BEGINNING TO LEVEL WHEN IT COLLIDED WITH THE GROUND. THE INVESTIGATION DID NOT REVEAL EVIDENCE OF AIRCRAFT MECHANICAL MALFUNCTION. THE PILOT AND PASSENGER WERE SERIOUSLY INJURED AND DID NOT RECALL THE DETAILS OF THE FLIGHT.

NTSB Probable Cause

THE PILOT'S FAILURE TO RECOVER FROM AN AEROBATIC MANUEVER IN TIME TO AVOID INFLIGHT COLLISION WITH THE GROUND.

Full Narrative

A WITNESS REPORTED THE AIRPLANE WAS DOING AEROBATIC MANUEVERS WHEN IT CRASHED. ACCORDING TO A WITNESS, THE AIRPLANE WAS ABOUT 2000 FEET MSL WHEN HE SAW THE AIRPLANE ROLL TWO AND ONE HALF TIMES, FINISHING IN AN INVERTED ATTITUDE. THE AIRPLANE THEN ENTERED A FLAT SPIN BEFORE IT PITCHED DOWN AND DESCENDED. THE WITNESS STATED THE AIRPLANE STOPPED SPINNING AND WAS BEGINNING TO LEVEL WHEN IT COLLIDED WITH THE GROUND. THE INVESTIGATION DID NOT REVEAL EVIDENCE OF AIRCRAFT MECHANICAL MALFUNCTION. THE PILOT AND PASSENGER WERE SERIOUSLY INJURED AND DID NOT RECALL THE DETAILS OF THE FLIGHT.

Flight

Event TypeAccident
Event Time10:52 EST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftHolmes Special S2C Special S2
Tail NumberN484MH
Aircraft CategoryAir
DamageDestroyed
OperatorCharles R Bradley
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-H2AD · Reciprocating · 160
Seats2

People & Injuries

Injury Summary2 injuries (2 serious injuries)
Fatal0
Serious2
Minor0
Uninjured0
Total2
Crew 1None

Conditions

ConditionsVMC
LightDaylight
Wind190° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point48 / 27 C
Altimeter30.00 inHg
Observation Time16:00
Weather SourceWFAC

Appendix: Source Data