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 1, 1988 · Schweizer SGS-1-26A · N2726Z
Montague, CA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 1, 1988
Injury Outcomes
1 injury (1 fatality)
Location
Montague, CA
Aircraft
Schweizer SGS-1-26A
Tail Number
N2726Z
Operator
Montague Aviation
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX88LA247
DURING A PLEASURE FLIGHT, THE LAST TRANSMISSION BY THE PILOT STATED HE WAS GOING TO SEE WHAT THE GLIDER COULD DO BESIDES STRAIGHT AND LEVEL FLIGHT. WITNESSES IN THE AREA REPORTED THAT THEY HEARD A LOUD POP AND OBSERVED THE GLIDER, MINUS THE LEFT WING, IN A VERTICAL DESCENT AND COLLIDE WITH THE TERRAIN. THE WING SPAR BROKE TWO FEET FROM THE ROOT. A METALLURGICAL TEST PERFORMED ON THE SPAR REPORTED THAT THE SPAR BROKE IN A POSITIVE (UP) OVERLOAD. POST ACC INVEST REVEALED THE ACFT WAS PLACARDED FOR PLT WT NOT TO EXCEED 166 LBS. THE REC PLT WEIGHED 210 LBS. A SCHWEIZER SERVICE BULLETIN RESTRICTS THIS SAILPLANE FROM AEROBATICS.
Full Narrative
DURING A PLEASURE FLIGHT, THE LAST TRANSMISSION BY THE PILOT STATED HE WAS GOING TO SEE WHAT THE GLIDER COULD DO BESIDES STRAIGHT AND LEVEL FLIGHT. WITNESSES IN THE AREA REPORTED THAT THEY HEARD A LOUD POP AND OBSERVED THE GLIDER, MINUS THE LEFT WING, IN A VERTICAL DESCENT AND COLLIDE WITH THE TERRAIN. THE WING SPAR BROKE TWO FEET FROM THE ROOT. A METALLURGICAL TEST PERFORMED ON THE SPAR REPORTED THAT THE SPAR BROKE IN A POSITIVE (UP) OVERLOAD. POST ACC INVEST REVEALED THE ACFT WAS PLACARDED FOR PLT WT NOT TO EXCEED 166 LBS. THE REC PLT WEIGHED 210 LBS. A SCHWEIZER SERVICE BULLETIN RESTRICTS THIS SAILPLANE FROM AEROBATICS.
Flight
Event TypeAccident
Event Time15:30 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer SGS-1-26A
Tail NumberN2726Z
Aircraft CategoryGli
DamageDestroyed
OperatorMontague Aviation
Operating RulePart 91
Engines0
Engine TypeUnknown
Engine DetailsUnknown
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 59 · Unknown
Conditions
ConditionsVMC
LightDaylight
Wind50° @ 15 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point57
Altimeter29.00 inHg
Weather SourceWIT