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

November 26, 2013 · Quad City Ultralight Acft Challenger II II · N522PE

Kalispell, MT

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
November 26, 2013
Injury Outcomes
No injuries (1 uninjured)
Location
Kalispell, MT
Aircraft
Quad City Ultralight Acft Challenger II II (2005)
Tail Number
N522PE
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR14CA058

According to the sport pilot, during takeoff in his experimental light sport airplane equipped with a two cylinder engine, he noted a loss of engine power. During the forced off airport landing, the airplane struck a fence post followed by a hard landing. The airplane sustained substantial damage to the horizontal stabilizer and fuselage. A postaccident examination of the engine revealed that the number 2 spark plug had pulled out of the cylinder head and the threads from the cylinder head were still attached to the spark plug.

NTSB Probable Cause

Environmental issues-Physical environment-Object/animal/substance-Fence/fence post-Contributed to outcome

Full Narrative

According to the sport pilot, during takeoff in his experimental light sport airplane equipped with a two cylinder engine, he noted a loss of engine power. During the forced off airport landing, the airplane struck a fence post followed by a hard landing. The airplane sustained substantial damage to the horizontal stabilizer and fuselage. A postaccident examination of the engine revealed that the number 2 spark plug had pulled out of the cylinder head and the threads from the cylinder head were still attached to the spark plug.

Flight

Event TypeAccident
Event Time09:45 MST
Nearest AirportKalispell City (1nm SSE)
Runway13
Runway Length3600 ft
Runway Width60 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftQuad City Ultralight Acft Challenger II II
Tail NumberN522PE
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsHirth · 2706 · Reciprocating · 65

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 55 · Sprt · None

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point18 C / 14 C
Altimeter30.35 inHg
Observation Time15:55
Weather SourceWFAC

Appendix: Source Data