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
February 21, 1988 · Bell 47D1 · N7735
Nixa, MO
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 21, 1988
Injury Outcomes
1 injury (1 fatality)
Location
Nixa, MO
Aircraft
Bell 47D1
Tail Number
N7735
Operator
Steve Moore
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
MKC88FA054
DURING THE PROCESS OF MOVING THE HELICOPTER FROM THE HANGAR THE RIGHT SKID SLIPPED OFF THE CONCRETE HELIPAD AND BECAME STUCK IN THE MUD. THE PILOT ATTEMPTED TO DISLODGE THE SKID BY BRINGING THE AIRCRAFT TO A HOVER. THE LEFT SKID BECAME AIRBORNE AND CONTACTED THE PAD SEVERAL TIMES ACCORDING TO A WITNESS. AS THE SKID BECAME DISLODGED THE PILOT LOST CONTROL OF THE AIRCRAFT, THE AIRCRAFT ROLLED AND CONTACTED THE TERRAIN. THE AIRCRAFT CAME TO REST ON ITS RIGHT SIDE. THE AIRCRAFT WAS DESTROYED BY IMPACT AND POST-IMPACT FIRE.
Full Narrative
DURING THE PROCESS OF MOVING THE HELICOPTER FROM THE HANGAR THE RIGHT SKID SLIPPED OFF THE CONCRETE HELIPAD AND BECAME STUCK IN THE MUD. THE PILOT ATTEMPTED TO DISLODGE THE SKID BY BRINGING THE AIRCRAFT TO A HOVER. THE LEFT SKID BECAME AIRBORNE AND CONTACTED THE PAD SEVERAL TIMES ACCORDING TO A WITNESS. AS THE SKID BECAME DISLODGED THE PILOT LOST CONTROL OF THE AIRCRAFT, THE AIRCRAFT ROLLED AND CONTACTED THE TERRAIN. THE AIRCRAFT CAME TO REST ON ITS RIGHT SIDE. THE AIRCRAFT WAS DESTROYED BY IMPACT AND POST-IMPACT FIRE.
Flight
Event TypeAccident
Event Time14:00 CST
Nearest AirportPrivate Strip (0nm N)
Runway0
Runway Length2600 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftBell 47D1
Tail NumberN7735
Aircraft CategoryHeli
DamageDestroyed
OperatorSteve Moore
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6V-335-A · Reciprocating · 210
Seats3
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 24 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 13 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point55 / 36 C
Altimeter29.00 inHg
Observation Time20:00
Weather SourceWFAC