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

September 17, 1990 · Cessna 152 · N67853

Kamas, UT

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 17, 1990
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Kamas, UT
Aircraft
Cessna 152
Tail Number
N67853
Operator
Michael P Mcphie
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
SEA90LA186

DURING A LOCAL FLIGHT WHILE MANEUVERING IN MOUNTAINOUS TERRAIN, THE AIRPLANE BEGAN TO DESCEND. THE PILOT APPLIED FULL POWER; HOWEVER, THE AIRPLANE CONTINUED TO DESCEND EVEN AT BEST RATE OF CLIMB SPEED. THE PILOT LEVELED THE AIRPLANE AND THE AIRSPEED INCREASED; HOWEVER, THE AIRPLANE HAD DESCENDED BELOW THE RIDGE LINE. UNABLE TO REGAIN ALTITUDE TO CLEAR THE TERRAIN, THE PILOT SELECTED AN AREA FOR AN EMERGENCY LANDING. DURING THE DESCENT, THE AIRPLANE COLLIDED WITH TREES. THERE WERE NO REPORTED MECHANICAL FAILURES OR MALFUNCTIONS WITH THE AIRPLANE.

NTSB Probable Cause

POOR INFLIGHT PLANNING BY THE PILOT. THE AIRPLANE ENCOUNTERED A POSSIBLE DOWNDRAFT CONDITION WHILE MANEUVERING IN MOUNTAINOUS TERRAIN WHICH RESULTED IN AN INFLIGHT COLLISION WITH TREES.

Full Narrative

DURING A LOCAL FLIGHT WHILE MANEUVERING IN MOUNTAINOUS TERRAIN, THE AIRPLANE BEGAN TO DESCEND. THE PILOT APPLIED FULL POWER; HOWEVER, THE AIRPLANE CONTINUED TO DESCEND EVEN AT BEST RATE OF CLIMB SPEED. THE PILOT LEVELED THE AIRPLANE AND THE AIRSPEED INCREASED; HOWEVER, THE AIRPLANE HAD DESCENDED BELOW THE RIDGE LINE. UNABLE TO REGAIN ALTITUDE TO CLEAR THE TERRAIN, THE PILOT SELECTED AN AREA FOR AN EMERGENCY LANDING. DURING THE DESCENT, THE AIRPLANE COLLIDED WITH TREES. THERE WERE NO REPORTED MECHANICAL FAILURES OR MALFUNCTIONS WITH THE AIRPLANE.

Flight

Event TypeAccident
Event Time08:30 MDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 152
Tail NumberN67853
Aircraft CategoryAir
DamageDestroyed
OperatorMichael P Mcphie
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-L2C · Reciprocating · 110
Seats2

People & Injuries

Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 29 · Third Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data