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
May 22, 1983 · Aircoupe 415-C · N3726H
Big Piney, WY
Overview
Report Status
Preliminary report
Event Type
Accident
Date
May 22, 1983
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
Big Piney, WY
Aircraft
Aircoupe 415-C
Tail Number
N3726H
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DEN83LA117
THE PILOT WAS PRACTICING A SHORT FIELD TAKEOFF. HOWEVER, HE HELD THE ELEVATOR FULL BACK DURING THE TAKEOFF ROLL UNTIL THE ACFT WAS 50 FT AGL, AND THEN ONLY RELEASED IT SLIGHTLY. ACCORDING TO THE PILOT, AIRSPEED WAS 47 MPH AT 50 FT AND ABOUT 57 MPH AT 70 FT. THEN THE ACFT NOSE FELL AND THE ACFT STARTED TO SINK RAPIDLY. THE PILOT THEN TRIED TO PICK UP AIRSPEED AND RECOVER BUT THE ACFT CONTINUED TO SETTLE. JUST BEFORE GROUND IMPACT THE PILOT SAID HE APPLIED BACK ELEVATOR WITH NO RESPONSE. THE ACFT HIT ON THE NOSE GEAR, BOUNCED AND NOSED OVER AS IT LEFT THE RWY. THE BEST ANGLE OF CLIMB AIRSPEED (VX) IS 70 KNOTS.
Full Narrative
THE PILOT WAS PRACTICING A SHORT FIELD TAKEOFF. HOWEVER, HE HELD THE ELEVATOR FULL BACK DURING THE TAKEOFF ROLL UNTIL THE ACFT WAS 50 FT AGL, AND THEN ONLY RELEASED IT SLIGHTLY. ACCORDING TO THE PILOT, AIRSPEED WAS 47 MPH AT 50 FT AND ABOUT 57 MPH AT 70 FT. THEN THE ACFT NOSE FELL AND THE ACFT STARTED TO SINK RAPIDLY. THE PILOT THEN TRIED TO PICK UP AIRSPEED AND RECOVER BUT THE ACFT CONTINUED TO SETTLE. JUST BEFORE GROUND IMPACT THE PILOT SAID HE APPLIED BACK ELEVATOR WITH NO RESPONSE. THE ACFT HIT ON THE NOSE GEAR, BOUNCED AND NOSED OVER AS IT LEFT THE RWY. THE BEST ANGLE OF CLIMB AIRSPEED (VX) IS 70 KNOTS.
Flight
Event TypeAccident
Event Time15:50 MDT
Nearest AirportBIGPINEY (0nm N)
Runway31
Runway Length4400 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAircoupe 415-C
Tail NumberN3726H
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C75-12F · Reciprocating · 75
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 45 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind315° @ 12 kt
Visibility100 sm
CeilingNone
Temperature / Dew Point63 F / 27 C
Altimeter30.00 inHg
Observation Time21:00
Weather SourceWFAC