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
July 10, 1992 · Callair A-9 · N9627Z
Beaver City, NE
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 10, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Beaver City, NE
Aircraft
Callair A-9
Tail Number
N9627Z
Operator
Trail John W & Hester A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI92DCJ04
THE PILOT WAS ENGAGED IN AERIAL APPLICATION ACTIVITIES WHEN THE ACCIDENT OCCURRED. HE STATED HE HAD JUST ENTERED A CLIMBING LEFT TURN TO REVERSE DIRECTION AT THE END OF A SWATH RUN WHEN THERE WAS A TOTAL LOSS OF ENGINE POWER. HE LANDED STRAIGHT AHEAD IN A TERRACED WHEAT FIELD, AND THE AIRPLANE IMPACTED A TERRACE. THE PILOT ESTIMATED HE WAS ABOUT 50 FEET ABOVE THE GROUND WHEN THE POWER LOSS OCCURRED. POST-ACCIDENT INVESTIGATION REVEALED THE LEFT MAGNETO FAILED DUE TO A JAMMED FLYWEIGHT ON THE IMPULSE COUPLING. THE CRANKSHAFT DRIVE GEAR THEN FAILED, AND THE ENGINE LOST POWER.
NTSB Probable Cause
THE INADEQUATE MAINTENANCE OVERHAUL OF THE LEFT MAGNETO, AND SUBSEQUENT FAILURE OF THE LEFT MAGNETO/IGNITION SYSTEM WHICH CAUSED A COMPLETE LOSS OF ENGINE POWER.
Full Narrative
THE PILOT WAS ENGAGED IN AERIAL APPLICATION ACTIVITIES WHEN THE ACCIDENT OCCURRED. HE STATED HE HAD JUST ENTERED A CLIMBING LEFT TURN TO REVERSE DIRECTION AT THE END OF A SWATH RUN WHEN THERE WAS A TOTAL LOSS OF ENGINE POWER. HE LANDED STRAIGHT AHEAD IN A TERRACED WHEAT FIELD, AND THE AIRPLANE IMPACTED A TERRACE. THE PILOT ESTIMATED HE WAS ABOUT 50 FEET ABOVE THE GROUND WHEN THE POWER LOSS OCCURRED. POST-ACCIDENT INVESTIGATION REVEALED THE LEFT MAGNETO FAILED DUE TO A JAMMED FLYWEIGHT ON THE IMPULSE COUPLING. THE CRANKSHAFT DRIVE GEAR THEN FAILED, AND THE ENGINE LOST POWER.
Flight
Event TypeAccident
Event Time17:25 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCallair A-9
Tail NumberN9627Z
Aircraft CategoryAir
DamageSubstantial
OperatorTrail John W & Hester A
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-540-B2B5 · Reciprocating · 235
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingBroken clouds 8000 ft
Temperature / Dew Point54
Altimeter30.00 inHg
Weather SourcePILO