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
September 6, 1984 · Grumman G-164A · N6887Q
Berlin, ND
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 6, 1984
Injury Outcomes
No injuries (1 uninjured)
Location
Berlin, ND
Aircraft
Grumman G-164A
Tail Number
N6887Q
Operator
Mandan Aerial Spraying Serv
Injuries
None
Aircraft Damage
Substantial
NTSB Number
DEN84LA285
THE ACFT COLLIDED WITH THE GROUND IN A SOFT FIELD AND NOSED OVER. THE PLT REPORTED THAT THE ENGINE LOST POWER AND HE COULD NOT DUMP HIS LOAD BECAUSE THE DUMP HANDLE CAME OFF. THE PLT SAID 100 GALLONS OF LIQUID FERTILIZER WAS LOADED ON THE ACFT. THE PLT DID NOT FILE AN ACCIDENT REPORT. THE ACFT WAS EXAMINED AND AUTOMOTIVE FUEL WAS FOUND IN IT EVEN THOUGHIT WAS NOT APPROVED FOR THIS TYPE OF FUEL. THE LOAD DUMP HANDLE INTERCONNECT WIRE WAS FOUND FRAYED WHICH PREVENTED OPERATION OF THE HANDLE. AN A&P MECHANIC FOUND NO DISCREPANCIES IN THE POWERPLANT. ONE PERSON WHO TALKED TO THE PLT AFTER THE ACCIDENT SAID IT SOUNDED AS THOUGH THE 'PLT GOT BEHIND THE ACFT.'
Full Narrative
THE ACFT COLLIDED WITH THE GROUND IN A SOFT FIELD AND NOSED OVER. THE PLT REPORTED THAT THE ENGINE LOST POWER AND HE COULD NOT DUMP HIS LOAD BECAUSE THE DUMP HANDLE CAME OFF. THE PLT SAID 100 GALLONS OF LIQUID FERTILIZER WAS LOADED ON THE ACFT. THE PLT DID NOT FILE AN ACCIDENT REPORT. THE ACFT WAS EXAMINED AND AUTOMOTIVE FUEL WAS FOUND IN IT EVEN THOUGHIT WAS NOT APPROVED FOR THIS TYPE OF FUEL. THE LOAD DUMP HANDLE INTERCONNECT WIRE WAS FOUND FRAYED WHICH PREVENTED OPERATION OF THE HANDLE. AN A&P MECHANIC FOUND NO DISCREPANCIES IN THE POWERPLANT. ONE PERSON WHO TALKED TO THE PLT AFTER THE ACCIDENT SAID IT SOUNDED AS THOUGH THE 'PLT GOT BEHIND THE ACFT.'
Flight
Event TypeAccident
Event Time16:46 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-164A
Tail NumberN6887Q
Aircraft CategoryAir
DamageSubstantial
OperatorMandan Aerial Spraying Serv
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R985AN1 · Reciprocating · 450
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 28 · None
Conditions
ConditionsVMC
LightDaylight
Wind130° @ 22 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point54
Altimeter29.00 inHg
Observation Time21:50
Weather SourceWFAC