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

July 4, 2008 · Stol UC-1 TWIN Bee · N9509U

Bunnell, FL

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 4, 2008
Injury Outcomes
2 injuries (2 minor injuries)
Location
Bunnell, FL
Aircraft
Stol UC-1 TWIN Bee
Tail Number
N9509U
Operator
Sps Palm Coast
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
NYC08CA241

The certificated flight instructor (CFI) and the student pilot of the UC-1 Twin Bee completed one uneventful landing on a lake. The CFI then decided to practice glassy water landings with the student, and took off to land on a different lake. A witness stated that the airplane "bounced" when it first contacted the water, and the airplane's right pontoon separated from the wing when it "hit" the water on a second touchdown. The airplane then turned 180 degrees, and sank. The airplane sustained substantial damage from the accident. The pilot reported no mechanical anomalies with the airplane. The winds reported at an airport 11 miles to the southeast, at the time of the accident, were calm.

NTSB Probable Cause

Personnel issues-Action/decision-Action-Incorrect action performance-Instructor/check pilot - C

Full Narrative

According to the certificated flight instructor (CFI), he and the student pilot of the UC-1 Twin Bee completed one uneventful landing on a lake. The CFI then decided to practice glassy water landings with the student, and took off to land on a different lake. A witness stated that the airplane "bounced" when it first contacted the water, and the airplane's right pontoon separated from the wing when it "hit" the water on a second touchdown. . The airplane then turned 180 degrees, and sank. The airplane sustained substantial damage from the accident. The pilot reported no mechanical anomalies with the airplane. The winds reported at an airport 11 miles to the southeast, at the time of the accident, were calm.

Flight

Event TypeAccident
Event Time10:45 EDT
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftStol UC-1 TWIN Bee
Tail NumberN9509U
Aircraft CategoryAir
DamageSubstantial
OperatorSps Palm Coast
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-B1D · Reciprocating · 180 | Lycoming · IO-360-B1D · Reciprocating · 180
Seats3

People & Injuries

Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 22 · First Class · Minor
Crew 2Age 49 · Third Class · Minor

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Altimeter30.13 inHg
Observation Time14:51
Weather SourceWFAC

Appendix: Source Data