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
Featured Report

Loading…

Loading featured report…

Loading…
Open 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…

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 manufacturers

Airports

More airports

Operators

More operators

About

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

May 12, 1988 · Hughes 269C · N751AM

Prineville, OR

Overview

Report Status
Preliminary report
Event Type
Accident
Date
May 12, 1988
Injury Outcomes
1 injury (1 minor injury), 2 uninjured
Location
Prineville, OR
Aircraft
Hughes 269C
Tail Number
N751AM
Operator
Jeannie Dent
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA88LA093

THE PILOT REDUCED POWER FOR LANDING AND A HIGH SINK RATE DEVELOPED. THE PILOT ATTEMPTED TO INCREASE POWER TO CORRECT THE SINK RATE BUT GOT NO RESPONSE. ROTOR RPM'S WERE DIMINISHING, SO THE PLT LOWERED THE COLLECTIVE TO REGAIN RPM'S. THE PILOT ELECTED MAKE AN AUTOROTATION. THE PILOT HELD THE HELICOPTER IN A FLARE UNTIL AIRSPEED WAS EXHAUSTED. AT ABOUT 5 FEET AGL THE HELICOPTER DESCENDED VERTICALLY UNTIL IT STRUCK THE GROUND, BREAKING OFF THE RIGHT SKID. THE HELICOPTER THEN ROLLED ONTO ITS RIGHT SIDE STRIKING THE MAIN ROTOR BLADES.

Full Narrative

THE PILOT REDUCED POWER FOR LANDING AND A HIGH SINK RATE DEVELOPED. THE PILOT ATTEMPTED TO INCREASE POWER TO CORRECT THE SINK RATE BUT GOT NO RESPONSE. ROTOR RPM'S WERE DIMINISHING, SO THE PLT LOWERED THE COLLECTIVE TO REGAIN RPM'S. THE PILOT ELECTED MAKE AN AUTOROTATION. THE PILOT HELD THE HELICOPTER IN A FLARE UNTIL AIRSPEED WAS EXHAUSTED. AT ABOUT 5 FEET AGL THE HELICOPTER DESCENDED VERTICALLY UNTIL IT STRUCK THE GROUND, BREAKING OFF THE RIGHT SKID. THE HELICOPTER THEN ROLLED ONTO ITS RIGHT SIDE STRIKING THE MAIN ROTOR BLADES.

Flight

Event TypeAccident
Event Time18:40 PDT
Nearest AirportPrineville (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftHughes 269C
Tail NumberN751AM
Aircraft CategoryHeli
DamageSubstantial
OperatorJeannie Dent
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-D1A · Reciprocating · 190
Seats3

People & Injuries

Injury Summary1 injury (1 minor injury), 2 uninjured
Fatal0
Serious0
Minor1
Uninjured2
Total3
Crew 1Age 39 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 12 kt
Visibility40 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data