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 5, 1983 · Zenair Cricket MC12 Cricket MC · CGAYW
Oshkosh, WI
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 5, 1983
Injury Outcomes
1 injury (1 minor injury)
Location
Oshkosh, WI
Aircraft
Zenair Cricket MC12 Cricket MC
Tail Number
CGAYW
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
CHI83FA370
DURING A FORMATION TAKEOFF, THE PLT WAS FLYING IN A LEFT WINGMAN POSITION & THE FLT ENTERED A RELATIVELY STEEP CLIMB. THE PLT STATED THAT THE AIRSPEED WAS SLIGHTLY ABOVE THE STALL SPEED AT ABOUT 100 TO 150 FT AGL WHEN THE LEFT ENG LOST POWER & THE ACFT BEGAN TURNING LEFT & LOSING ALT. HE REPORTED THAT THE PLANE STALLED & HE COULD NOT CONTROL THE LEFT YAW & TURN, UNTIL AFTER HE LOWERED THE NOSE & REGAINED AIRSPEED. HE DID NOT REDUCE POWER ON THE OPERATING ENG. SUBSEQUENTLY, THE ACFT STRUCK THE GROUND IN A SLIGHT NOSE DOWN ATTITUDE. AN INVESTIGATON REVEALED THAT THE SINGLE SPARK PLUG IN THE LEFT, SINGLE CYLINDER, 2 STROKE ENG WAS NOT FIRING AT THE ELECTRODE TIP.
Full Narrative
DURING A FORMATION TAKEOFF, THE PLT WAS FLYING IN A LEFT WINGMAN POSITION & THE FLT ENTERED A RELATIVELY STEEP CLIMB. THE PLT STATED THAT THE AIRSPEED WAS SLIGHTLY ABOVE THE STALL SPEED AT ABOUT 100 TO 150 FT AGL WHEN THE LEFT ENG LOST POWER & THE ACFT BEGAN TURNING LEFT & LOSING ALT. HE REPORTED THAT THE PLANE STALLED & HE COULD NOT CONTROL THE LEFT YAW & TURN, UNTIL AFTER HE LOWERED THE NOSE & REGAINED AIRSPEED. HE DID NOT REDUCE POWER ON THE OPERATING ENG. SUBSEQUENTLY, THE ACFT STRUCK THE GROUND IN A SLIGHT NOSE DOWN ATTITUDE. AN INVESTIGATON REVEALED THAT THE SINGLE SPARK PLUG IN THE LEFT, SINGLE CYLINDER, 2 STROKE ENG WAS NOT FIRING AT THE ELECTRODE TIP.
Flight
Event TypeAccident
Event Time15:45 CDT
Nearest AirportWittman Field (0nm N)
Runway36
Runway Length6700 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftZenair Cricket MC12 Cricket MC
Tail NumberCGAYW
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsJpx · POL · Reciprocating
Seats1
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 53 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourceWIT