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

April 22, 2019 · Cessna 170 B · N4567C

Prineville, OR

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
April 22, 2019
Injury Outcomes
No injuries (2 uninjured)
Location
Prineville, OR
Aircraft
Cessna 170 B (1953)
Tail Number
N4567C
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR19LA130

The pilot reported that after a normal preflight, he proceeded to the runway and started the takeoff roll. Once the airplane’s tail lifted off the ground, the airplane pulled toward the left and continued to do so despite the pilot adding right rudder. He reduced the power to idle and attempted to stop the airplane; however, it exited the runway surface and impacted a tree substantially damaging the wings. The pilot had about 82 hours in make and model but only about 5 to 10 hours in the accident airplane, which had a more powerful engine than his previous airplane. Postaccident examination revealed there were no anomalies with the airplane that would have precluded normal operation. Wind reports shortly before and after the accident indicate a crosswind in relation to the takeoff runway. In addition, the accident airplane’s more powerful engine may have responded differently on takeoff than what the pilot was accustomed to. Despite these potential factors, the pilot ultimately did not maintain directional control during takeoff.

NTSB Probable Cause

Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained

Full Narrative

On April 21, 2019, about 1845 Pacific daylight time, a Cessna 170B, N4567C, was substantially damaged when it was involved in an accident at Dry Creek Airpark (OG21), Prineville, Oregon. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that after a normal preflight, he proceeded to runway 25 and started the takeoff roll. Once the airplane’s tail lifted off the ground, the airplane pulled toward the left. The pilot added right rudder, but the airplane continued to pull toward the left. He reduced the power to idle and attempted to stop the airplane; however, it exited the runway surface and impacted a tree substantially damaging the wings. The pilot also stated he had about 82 hours in make and model but only about 5 to 10 hours in the accident airplane since he recently purchased it. The pilot also said that the accident airplane had a more powerful 180 horsepower engine than his previous airplane (145 horsepower). During an examination of the airplane by a mechanic, the flight controls remained secured, were configured properly, and did not exhibit abnormal wear. In addition, the wheels rotated freely, and the brakes exhibited normal operating wear signatures. No anomalies were noted during the examination. The nearest weather reporting station was located about 6 miles to the north-northwest of the accident airport. About 10 minutes before the accident, the wind was reported from 010º at 8 knots; and about 10 minutes after the accident wind was reported from 360º at 8 knots gusting to 13 knots.

Flight

Event TypeAccident
Event Time18:45 PDT
Nearest AirportDry Creek Airpark (0nm)
Runway25
Runway Length3000 ft
Runway Width35 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 170 B
Tail NumberN4567C
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O&VO-360 SER · Reciprocating · 180
Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 20 · Second Class · None

Conditions

ConditionsVMC
LightDaylight
Wind360° @ 8 kt, gusting 13 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point59 / 28 C
Altimeter30.19 inHg
Observation Time01:55
Weather SourceWFAC

Appendix: Source Data