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 20, 1988 · Cessna 152 · N25934

Heber City, UT

Overview

Report Status
Preliminary report
Event Type
Accident
Date
May 20, 1988
Injury Outcomes
2 injuries (2 fatalities)
Location
Heber City, UT
Aircraft
Cessna 152
Tail Number
N25934
Operator
Hudson General
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN88FA110

THE CFI AND STUDENT PLT WERE ON A ROUND-ROBIN CROSS-COUNTRY FLT. A WITNESS NEAR THE ACCIDENT SITE SAID HE SAW AN AIRPLANE FLYING 'UP A CANYON QUITE SLOW AND LOW'. THE AIRPLANE WAS REPORTED OVERDUE AND FOUND THE NEXT DAY IN A 'BOX CANYON' AT THE 8,500 FOOT LEVEL. THE PORTION OF THE CANYON WHERE THE WRECKAGE WAS LOCATED IS APPROXIMATELY 1/4 MILE WIDE. THE AIRPLANE IMPACTED TREES AND STEEP TERRAIN IN A NEAR VERTICAL, NOSE LOW, RT WING LOW ATTITUDE. NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE OF THE AIRPLANE, ENGINE OR PROPELLER WAS FOUND. THE DENSITY ALTITUDE WAS CALCULATED TO BE 10,278 FEET. THE TERRAIN IN THE VICINITY OF THE ACCIDENT SITE RISES TO OVER 11,000 FEET.

Full Narrative

THE CFI AND STUDENT PLT WERE ON A ROUND-ROBIN CROSS-COUNTRY FLT. A WITNESS NEAR THE ACCIDENT SITE SAID HE SAW AN AIRPLANE FLYING 'UP A CANYON QUITE SLOW AND LOW'. THE AIRPLANE WAS REPORTED OVERDUE AND FOUND THE NEXT DAY IN A 'BOX CANYON' AT THE 8,500 FOOT LEVEL. THE PORTION OF THE CANYON WHERE THE WRECKAGE WAS LOCATED IS APPROXIMATELY 1/4 MILE WIDE. THE AIRPLANE IMPACTED TREES AND STEEP TERRAIN IN A NEAR VERTICAL, NOSE LOW, RT WING LOW ATTITUDE. NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE OF THE AIRPLANE, ENGINE OR PROPELLER WAS FOUND. THE DENSITY ALTITUDE WAS CALCULATED TO BE 10,278 FEET. THE TERRAIN IN THE VICINITY OF THE ACCIDENT SITE RISES TO OVER 11,000 FEET.

Flight

Event TypeAccident
Event Time18:30 MDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 152
Tail NumberN25934
Aircraft CategoryAir
DamageDestroyed
OperatorHudson General
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 110
Seats2

People & Injuries

Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 25 · First Class

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 12 kt, gusting 20 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point61 F / 0 C
Altimeter30.00 inHg
Weather SourceWIT

Appendix: Source Data