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
June 4, 1990 · Grumman G-164B · N6693Q
Mamou, LA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 4, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Mamou, LA
Aircraft
Grumman G-164B
Tail Number
N6693Q
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW90DRD10
AG PILOT SAID HE WAS TAKING OFF ON 4TH TRIP FROM SAME STRIP THAT DAY, WHEN AIRPLANE WOULD NOT CLIMB. HE SAID HE OVER- BOOSTED THE ENGINE TO TRY TO GET OVER TREES. WITH LOW A/S/ AND HIGH ANGLE OF ATTACK, AIRPLANE STARTED TO SETTLE. HE DUMPED LOAD AND LOWERED NOSE. AIRPLANE SETTLED INTO RICE FIELD, HIT A LEVEE, AND FLIPPED FORWARD TO INVERTED POSITION. FAA SAID AIRPLANE HIT SMALL TREES WHEN WIND SHIFTED FROM CROSSWIND TO TAILWIND DURING TAKEOFF.
NTSB Probable Cause
PILOT MISJUDGED WIND INFORMATION. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE TAILWIND, THE TREES AND THE LEVEE.
Full Narrative
AG PILOT SAID HE WAS TAKING OFF ON 4TH TRIP FROM SAME STRIP THAT DAY, WHEN AIRPLANE WOULD NOT CLIMB. HE SAID HE OVER- BOOSTED THE ENGINE TO TRY TO GET OVER TREES. WITH LOW A/S/ AND HIGH ANGLE OF ATTACK, AIRPLANE STARTED TO SETTLE. HE DUMPED LOAD AND LOWERED NOSE. AIRPLANE SETTLED INTO RICE FIELD, HIT A LEVEE, AND FLIPPED FORWARD TO INVERTED POSITION. FAA SAID AIRPLANE HIT SMALL TREES WHEN WIND SHIFTED FROM CROSSWIND TO TAILWIND DURING TAKEOFF.
Flight
Event TypeAccident
Event Time08:30 CDT
Nearest Airport1nm
Runway0
Runway Length1800 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-164B
Tail NumberN6693Q
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R-985-AN1 · Reciprocating · 450
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 39 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind270° @ 3 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point68 F
Altimeter0
Weather SourceWIT