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
December 9, 1990 · Ercoupe Eng & Research 415-C · N3080H
Madera, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 9, 1990
Injury Outcomes
1 injury (1 minor injury)
Location
Madera, CA
Aircraft
Ercoupe Eng & Research 415-C
Tail Number
N3080H
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
LAX91LA051
THE PILOT OF A ENGINEERING RESEARCH 415-C AIRCRAFT EXPERIENCED ENGINE FAILURE DURING CRUISE. THE PILOT STATED HE NOTICED THE FUEL SIGHT GAUGE ON THE FUSELAGE FUEL TANK GOING DOWN MORE RAPIDLY THAN NORMAL. AT THIS TIME HE STARTED DOWN TO LAND AT MADERA, CALIFORNIA; HOWEVER, THE ENGINE QUIT AND HE WAS UNABLE TO MAKE THE AIRPORT. INVESTIGATION DISCLOSED A PLUGGED VENT LINE ON THE RIGHT FUEL TANK. THERE WAS AN UNQUANTIFIED AMOUNT OF FUEL REMAINING IN THE LEFT FUEL TANK.
NTSB Probable Cause
ENGINE FAILURE DUE TO A PLUGGED VENT LINE, AFFECTING THE ABILITY OF THE SYSTEM TO TRANSFER FUEL TO THE MAIN TANK.
Full Narrative
THE PILOT OF A ENGINEERING RESEARCH 415-C AIRCRAFT EXPERIENCED ENGINE FAILURE DURING CRUISE. THE PILOT STATED HE NOTICED THE FUEL SIGHT GAUGE ON THE FUSELAGE FUEL TANK GOING DOWN MORE RAPIDLY THAN NORMAL. AT THIS TIME HE STARTED DOWN TO LAND AT MADERA, CALIFORNIA; HOWEVER, THE ENGINE QUIT AND HE WAS UNABLE TO MAKE THE AIRPORT. INVESTIGATION DISCLOSED A PLUGGED VENT LINE ON THE RIGHT FUEL TANK. THERE WAS AN UNQUANTIFIED AMOUNT OF FUEL REMAINING IN THE LEFT FUEL TANK.
Flight
Event TypeAccident
Event Time13:50 PST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftErcoupe Eng & Research 415-C
Tail NumberN3080H
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · C-85-12F · Reciprocating · 85
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 69 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind320° @ 3 kt
Visibility4 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO