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
August 15, 1993 · Helio H-295 · N42DC
Mt. Deborah, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 15, 1993
Injury Outcomes
No injuries (1 uninjured)
Location
Mt. Deborah, AK
Aircraft
Helio H-295
Tail Number
N42DC
Operator
Bursiel Robert P
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC93LA154
DURING THE LANDING ROLL AT A REMOTE SITE THE RIGHT MAIN LANDING GEAR COLLAPSED AND THE RIGHT WING DRAGGED THE GROUND. EXAMINATION REVEALED THAT THE RIGHT MAIN LANDING GEAR LEG, PART NUMBER 250 040 451 1, FAILED AT THE UPPER WELD. FURTHER EXAMINATION REVEALED AN UNDOCUMENTED PREVIOUS REPAIR AT THE FAILED AREA. IT WAS FOUND THAT THE GEAR LEG METAL HAD BEEN IMPROPERLY HEAT TREATED FOLLOWING THAT REPAIR.
NTSB Probable Cause
FAILURE OF THE RIGHT MAIN LANDING GEAR LEG DUE TO THE IMPROPER MAJOR REPAIR PERFORMED ON THE GEAR LEG BY SOME UNKNOWN MAINTENANCE PERSON(S).
Full Narrative
On August 15, 1993, at 1230 Alaska daylight time, a wheel equipped Helio H 295 airplane, N42DC, operated by Wright Air Service, Inc., of Fairbanks, Alaska, experienced a collapsed main landing gear and dragged a wing while landing at a remote hunting strip near Mount Deborah, Alaska, and about 40 miles southwest of Delta Junction, Alaska. The airline transport pilot, the sole occupant, was not injured, and the airplane was substantially damaged. The positioning flight, operating under 14 CFR Part 91, departed another nearby remote strip at about 1200. Visual meteorological conditions existed, and a company VFR flight plan was filed. The pilot stated that during the landing roll the right main landing gear collapsed, and the right wing hit the ground.
Flight
Event TypeAccident
Event Time12:30 AKDT
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHelio H-295
Tail NumberN42DC
Aircraft CategoryAir
DamageSubstantial
OperatorBursiel Robert P
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · GO-480-G1D6 · Reciprocating · 295
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind13 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point45 C / 0 C
Altimeter0
Weather SourcePILO