Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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
June 26, 1990 · Schweizer G-164B · N8483K
Deer Grove, IL
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 26, 1990
Injury Outcomes
1 injury (1 minor injury)
Location
Deer Grove, IL
Aircraft
Schweizer G-164B
Tail Number
N8483K
Operator
Packer Richard L
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI90DEE07
A PILOT(ENGAGED IN AERIAL APPLICATION) HAD MADE A SURVEY PASS AROUND THE FIELD, NOTING A POWER LINE. ON THE FOURTH RUN, THE BIPLANE STRUCK THE BOTTOM LINE WITH ITS UPPER WING. THE PILOT STATED HE UNDERFLEW THE LINES ON AN EARLIER RUN, BUT ON THE ACCIDENT PASS, HE MISTOOK THE SECOND LINE FOR THE BOTTOM WIRE UNTIL TOO CLOSE TO CORRECT.
NTSB Probable Cause
THE PILOT'S INADEQUATE VISUAL LOOKOUT, RESULTING IN COLLISION WITH A POWER LINE.
Full Narrative
A PILOT(ENGAGED IN AERIAL APPLICATION) HAD MADE A SURVEY PASS AROUND THE FIELD, NOTING A POWER LINE. ON THE FOURTH RUN, THE BIPLANE STRUCK THE BOTTOM LINE WITH ITS UPPER WING. THE PILOT STATED HE UNDERFLEW THE LINES ON AN EARLIER RUN, BUT ON THE ACCIDENT PASS, HE MISTOOK THE SECOND LINE FOR THE BOTTOM WIRE UNTIL TOO CLOSE TO CORRECT.
Flight
Event TypeAccident
Event Time18:45 CDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer G-164B
Tail NumberN8483K
Aircraft CategoryAir
DamageSubstantial
OperatorPacker Richard L
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-1340 · Reciprocating · 600
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 46 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 5 kt
Visibility15 sm
CeilingOvercast 24200 ft
Temperature / Dew Point70 F
Altimeter29.00 inHg
Observation Time23:52
Weather SourceWFAC