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 13, 1991 · Bellanca 17-30A · N6704V

Boyne City, MI

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 13, 1991
Injury Outcomes
1 injury (1 fatality)
Location
Boyne City, MI
Aircraft
Bellanca 17-30A
Tail Number
N6704V
Operator
Trapline
Injuries
Fatal
Aircraft Damage
Substantial
NTSB Number
CHI91FA266

THE PILOT WAS CONDUCTING LOCAL FLIGHT FOR THE PURPOSE OF FAMILIARIZATION IN THE AIRCRAFT AND TO DISPERSE ASHES OVER A LAKE. WITNESSES OBSERVED THE AIRCRAFT IN LOW LEVEL FLIGHT FOR A SHORT TIME PRIOR TO SEEING IT DESCEND AND IMPACT THE SURFACE OF THE LAKE. SUBSEQUENT INVESTIGATION REVEALED THAT THE PILOT WAS STRAPPED IN THE RIGHT SEAT WITH THE CABIN DOOR OPEN. THE SINGLE AXIS AUTO PILOT WAS ENGAGED IN THE HEADING MODE. THE LANDING GEAR WAS EXTENDED, ALTHOUGH THE LANDING GEAR SELECTOR WAS IN THE 'UP' POSITION. THE AIRPLANE WAS EQUIPPED WITH AN AUTOMATIC GEAR EXTENSION FEATURE. RESIDUE WAS LOCATED IN THE COCKPIT WHICH WAS IDENTIFIED AS CREMATED REMAINS.

NTSB Probable Cause

THE PILOT IN COMMAND'S FAILURE TO MAINTAIN PROPER ALTITUDE. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE PILOT IN COMMAND'S DIVERTED ATTENTION..

Full Narrative

THE PILOT WAS CONDUCTING LOCAL FLIGHT FOR THE PURPOSE OF FAMILIARIZATION IN THE AIRCRAFT AND TO DISPERSE ASHES OVER A LAKE. WITNESSES OBSERVED THE AIRCRAFT IN LOW LEVEL FLIGHT FOR A SHORT TIME PRIOR TO SEEING IT DESCEND AND IMPACT THE SURFACE OF THE LAKE. SUBSEQUENT INVESTIGATION REVEALED THAT THE PILOT WAS STRAPPED IN THE RIGHT SEAT WITH THE CABIN DOOR OPEN. THE SINGLE AXIS AUTO PILOT WAS ENGAGED IN THE HEADING MODE. THE LANDING GEAR WAS EXTENDED, ALTHOUGH THE LANDING GEAR SELECTOR WAS IN THE 'UP' POSITION. THE AIRPLANE WAS EQUIPPED WITH AN AUTOMATIC GEAR EXTENSION FEATURE. RESIDUE WAS LOCATED IN THE COCKPIT WHICH WAS IDENTIFIED AS CREMATED REMAINS.

Flight

Event TypeAccident
Event Time11:45 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBellanca 17-30A
Tail NumberN6704V
Aircraft CategoryAir
DamageSubstantial
OperatorTrapline
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520K · Reciprocating · 285
Seats4

People & Injuries

Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 55 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind280° @ 13 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time17:48
Weather SourceWFAC

Appendix: Source Data