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

August 3, 2013 · Cessna 172N · N737PD

Knoxville, TN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
August 3, 2013
Injury Outcomes
No injuries (1 uninjured)
Location
Knoxville, TN
Aircraft
Cessna 172N (1977)
Tail Number
N737PD
Operator
Knox Flight Training
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA13CA404

The solo student pilot reported that she was practicing takeoffs and landings. During landing, the airplane touched down hard and bounced back into the air. It then stalled and porpoised several times, before the nosegear collapsed and the airplane came to rest upright on the runway. The student pilot reported no preimpact mechanical malfunctions with the airplane and examination of the airplane by a Federal Aviation Administration inspector did not reveal any. The inspector observed damage to the propeller, nosegear assembly, and firewall. The recorded weather near the accident site, about the time of the accident, was a headwind at 8 knots.

NTSB Probable Cause

Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Landing flare-Incorrect use/operation - C

Full Narrative

The solo student pilot reported that she was practicing takeoffs and landings. During landing, the airplane touched down hard and bounced back into the air. It then stalled and porpoised several times, before the nosegear collapsed and the airplane came to rest upright on the runway. The student pilot reported no preimpact mechanical malfunctions with the airplane and examination of the airplane by a Federal Aviation Administration inspector did not reveal any. The inspector observed damage to the propeller, nosegear assembly, and firewall. The recorded weather near the accident site, about the time of the accident, was a headwind at 8 knots.

Flight

Event TypeAccident
Event Time11:45 EDT
Nearest AirportKnoxville Downtown Island (0nm N)
Runway26
Runway Length3499 ft
Runway Width75 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 172N
Tail NumberN737PD
Aircraft CategoryAir
DamageSubstantial
OperatorKnox Flight Training
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320 · Reciprocating · 160
Seats4

People & Injuries

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

Conditions

ConditionsVMC
LightDaylight
Wind250° @ 8 kt
Visibility10 sm
CeilingOvercast 25000 ft
Temperature / Dew Point66 F
Altimeter30.05 inHg
Observation Time11:53
Weather SourceWFAC

Appendix: Source Data