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
August 24, 1984 · Cessna 170B · N7681
Poplar, MT
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 24, 1984
Injury Outcomes
1 injury (1 minor injury)
Location
Poplar, MT
Aircraft
Cessna 170B
Tail Number
N7681
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DEN84LA265
PLT STATED, 'RIVER CURRENT 12-15 MPH, LANDING AREA 100 YARDS WIDE, CURVING TO RIGHT, WIND GUSTING TO 20 KNOTS FROM RIGHT REAR QUARTER. APPROACH WAS FAST, AND UPON LANDING, AIRCRAFT REMAINED ON STEP, UNRESPONSIVE TO AILERON AND RUDDER FOR TURNING. QUARTERING TAILWIND PUSHED AIRCRAFT INTO OUTER BANK OF RIVER WITH ENGINE IDLING, AIRCRAFT STILL TAXIING ON STEP AT PERHAPS 30 MPH. DECISION NOT TO APPLY POWER AND GET BACK OFF WATER BECAUSE OF STRONG TAILWIND AND LIMITED SPACE TO RESUME FLYING SPEED. AIRCRAFT FLIPPED OVER ITS NOSE AND ONTO ITS BACK, RESTING ON RIVER BANK.'
Full Narrative
PLT STATED, 'RIVER CURRENT 12-15 MPH, LANDING AREA 100 YARDS WIDE, CURVING TO RIGHT, WIND GUSTING TO 20 KNOTS FROM RIGHT REAR QUARTER. APPROACH WAS FAST, AND UPON LANDING, AIRCRAFT REMAINED ON STEP, UNRESPONSIVE TO AILERON AND RUDDER FOR TURNING. QUARTERING TAILWIND PUSHED AIRCRAFT INTO OUTER BANK OF RIVER WITH ENGINE IDLING, AIRCRAFT STILL TAXIING ON STEP AT PERHAPS 30 MPH. DECISION NOT TO APPLY POWER AND GET BACK OFF WATER BECAUSE OF STRONG TAILWIND AND LIMITED SPACE TO RESUME FLYING SPEED. AIRCRAFT FLIPPED OVER ITS NOSE AND ONTO ITS BACK, RESTING ON RIVER BANK.'
Flight
Event TypeAccident
Event Time13:00 MDT
Nearest AirportPOPLAR (2nm SSE)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 170B
Tail NumberN7681
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1A · Reciprocating · 180
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 35 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind290° @ 9 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point45 C
Altimeter29.00 inHg
Observation Time18:50
Weather SourcePILO