Every U.S. civil aircraft that crashes, catches fire, or breaks apart in flight is, in the end, a file: a date, a make and model, a phase of flight, and a probable cause the National Transportation Safety Board spent months reconstructing. Most of the file is small airplanes on quiet fields. A handful are the crashes that rewrote the rules. This is a reading of what actually brings airplanes down, where in the flight it happens, and the two very different worlds of commercial and private aviation.
What the wreckage says, ranked. These are the leading probable-cause categories for fatal general-aviation accidents - the world where nearly all the crashes are. One pattern dominates every year: the pilot loses control of a perfectly good airplane. Weather and low-altitude maneuvering kill a smaller share, but far out of proportion to how often they happen.
Illustrative v1 - approximate shares Category shares approximate published NTSB / AOPA Air Safety Institute ranges, not exact counts. See Methodology.
Stalls, spins, and upsets the pilot never recovers from - consistently the single largest killer in general aviation.
A flyable aircraft flown into ground, water, or obstacles - most often at night or in reduced visibility.
Midair collisions, birdstrikes, and the cases where the wreckage never gives up a single cause.
Buzzing, canyon-turns, aerobatics near the ground: little room, no margin.
Running the tanks dry or feeding from the wrong one - the most preventable line in the file.
A visual pilot continuing into cloud. When it happens, it is fatal far more often than not.
Engine and system failures - a minority of accidents, and usually survivable.
share of fatal GA accidents · disproportionately fatal when it occurs
Read it as the arc of a flight, top to bottom: push back, climb out, cruise, and come back down. Accidents cluster at the two ends - takeoff and, above all, landing - because that is where the airplane is low, slow, and changing configuration. But the bar length and the danger are not the same thing. Landing bends the most metal and kills the fewest people; takeoff, maneuvering, and cruise are where the fatalities concentrate.
Illustrative v1 - approximate shares A profile of where accidents happen, approximating published NTSB phase distributions. The oxblood phases are the disproportionately fatal ones. See Methodology.
Landing alone is about 25% of accidents - and among the least likely to be fatal. Shares are of all accidents, not fatal ones; they sum to roughly 100%.
| Phase | Share of accidents | Fatal-heavy |
|---|---|---|
| Standing / taxi | 5% | - |
| Takeoff / initial climb | 13% | yes |
| Climb | 6% | - |
| Cruise | 12% | yes |
| Maneuvering | 10% | yes |
| Descent | 6% | - |
| Approach | 13% | yes |
| Landing | 25% | - |
| Go-around / other | 10% | - |
The same sky holds two almost unrelated safety records. Scheduled airline flying has become the safest way humans have ever moved: whole years pass without a single passenger death. Private flying carries nearly the entire accident burden - a steady drumbeat that has barely changed in decades. These figures are real in the large; the exact rates are approximate.
The safest way humans have ever moved. Between Colgan Air 3407 (2009) and the Reagan National midair (2025), no U.S. airliner killed a scheduled passenger for roughly sixteen years.
Private flying carries almost the entire U.S. accident burden - a steady drumbeat of roughly a thousand crashes and a couple hundred fatal ones every year, largely unchanged for decades.
Major scheduled-passenger (Part 121) accidents with fatalities. The long quiet after 2009 is the record itself: no U.S. airliner killed a scheduled passenger for roughly sixteen years, until the Reagan National midair.
Engine and pylon separated on takeoff; maintenance-induced.
Took off with ice on the wings; engine anti-ice off.
Took off with flaps and slats not set.
Uncommanded rudder hardover; 737 rudder design.
Cargo fire from mislabeled oxygen generators.
Center wing fuel tank exploded.
Jackscrew failure; maintenance lubrication.
Vertical stabilizer separated after rudder inputs.
Took off from the wrong, too-short runway.
Stall on approach; crew's response and fatigue.
Midair with an Army helicopter near Reagan National. NTSB investigation ongoing.
A handful of accidents changed how everyone flies. Each of these has a published NTSB probable cause and a legacy written into regulation, training, or design. One of them - the Hudson ditching - is where this file meets its sister database of wildlife strikes. Findings below are paraphrased from the NTSB reports.
Probable cause The left engine and its pylon tore away during takeoff rotation, damaged the wing's leading edge, and retracted the outboard slats. Asymmetric lift rolled the DC-10 as it stalled. The NTSB traced the damaged pylon to a time-saving maintenance procedure that lifted the engine and pylon as one unit.
Legacy Still the deadliest aviation accident on U.S. soil. It forced a rethink of engine-change procedures and of stall-warning systems that went dark when the crew needed them most.
Probable cause The crew took off in a snowstorm without turning on engine anti-ice, so iced-over probes fed them false, high thrust readings. The undersped 737 never climbed, struck the 14th Street Bridge, and fell into the frozen Potomac. Ice on the wings and a decision not to reject the takeoff sealed it.
Legacy A textbook cold-weather and crew-coordination case. It reshaped de-icing standards and how crews challenge a takeoff that feels wrong.
Probable cause The tail-mounted engine's fan disk broke apart from an undetected fatigue crack in the titanium. Shrapnel severed all three hydraulic systems and left the crew with no flight controls at all. They flew the crippled jet to Sioux City on engine thrust alone.
Legacy A survivable outcome from an unsurvivable failure - 184 lived. It drove changes to titanium inspection and to how crews improvise with total control loss.
Probable cause Chemical oxygen generators, improperly labeled and packed by a maintenance contractor, ignited in the forward cargo hold. Fire filled the cabin and the DC-9 dived into the swamp minutes after takeoff.
Legacy It made fire detection and suppression mandatory in Class D cargo holds and hardened the rules for shipping hazardous materials by air.
Probable cause The nearly empty center wing fuel tank held a flammable fuel-air vapor. A short circuit outside the tank most likely carried energy into it and set it off, blowing the 747 apart off Long Island.
Legacy One of the most exhaustive investigations ever run. It produced fuel-tank flammability rules and the inerting systems now standard on transport jets.
Probable cause On an icy night approach to Buffalo, the stall warning fired and the captain pulled back instead of pushing forward, driving the Q400 into a full stall it never recovered from. The NTSB cited the crew's response, fatigue, and lax cockpit discipline.
Legacy The last U.S. airline crash to kill scheduled passengers for roughly sixteen years. It produced the 1,500-hour first-officer rule and sweeping pilot-fatigue and training reforms.
Probable cause A flock of Canada geese went into both engines seconds after takeoff from LaGuardia, killing all thrust. With no runway in reach, the crew ditched in the Hudson. Everyone aboard survived.
Legacy The 'Miracle on the Hudson' - and the point where this file touches its sister database of wildlife strikes. It sharpened bird-strike research and ditching and engine-restart procedures.
Probable cause On a clear-day visual approach, the crew let the airspeed decay while relying on autothrottle behavior they misunderstood. The 777 struck the seawall short of the runway. The NTSB cited mismanagement of the approach and over-reliance on automation.
Legacy A defining automation-dependency case. It pushed carriers toward more hand-flying proficiency and clearer autothrottle training.
This is a v1 curated snapshot, not a live query. It pairs figures that are real and well documented with a few that are illustrative, and it labels which is which - on the page and here.
The authoritative record is the NTSB aviation investigation database, searchable and exportable through CAROL (Case Analysis and Reporting Online), with individual accident reports published at the same site. It reaches back to 1962 and holds tens of thousands of investigated accidents. This page does not yet read that export directly; it reads a small hand-built file assembled from published NTSB reports and summaries.
The Hall of Investigations and the airline-fatal-accident timeline are real. Every case - date, aircraft, location, fatality and survivor counts, and the probable cause - is drawn from the published NTSB report for that accident. Probable-cause text is paraphrased for length, not quoted verbatim. The broad contrast between commercial and general aviation is real too: scheduled U.S. airlines went roughly sixteen years, from Colgan Air 3407 in 2009 to the Reagan National midair in 2025, without killing a scheduled passenger, while general aviation continued to account for the overwhelming majority of accidents and fatalities.
The probable-cause shares and the phase-of-flight profile are marked Illustrative v1 wherever they appear. They approximate the well-established shape of the published record - loss of control leading the fatal categories, accidents clustering at takeoff and landing, VFR-into-cloud being rare but highly fatal - using rounded figures in the range of NTSB and AOPA Air Safety Institute reporting. They are not exact counts from a specific year, and should be read as the pattern, not the number. The per-year accident totals and rates in "Two Industries" are likewise approximate.
The NTSB names a single probable cause for each accident, sometimes with contributing factors listed separately. The categories here collapse that nuance into one bucket per accident. A stall that followed an engine failure that followed fuel starvation is one story with three honest labels; this page picks the one the NTSB led with.
Incidents that never rose to a reportable accident. The near-misses. The maintenance discrepancy caught on the ground. And, in this v1, the full distribution behind the illustrative charts - which arrives when the CAROL export is wired in.
The data adapter at src/lib/source.ts is the documented swap-point, and scripts/build-data.ts regenerates the distributional fields from a real NTSB export while preserving the curated case files. Point it at the CAROL download and the phase and cohort figures recompute from records; the components do not change. The exact fetch recipe is in HANDOFF.md.
Generated 2026-07-04. The notable investigations and the airline-fatal-accident timeline are real, drawn from published NTSB reports. The cause and phase-of-flight distributions are illustrative v1 figures that approximate published NTSB and AOPA Air Safety Institute ranges - not exact counts. See Methodology. Source attribution: National Transportation Safety Board · Office of Aviation Safety.