Overall Trends
Total, fatal, and serious accidents in the selected range.
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
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured 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…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
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 manufacturersAirports
More airportsOperators
More operatorsAbout
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
March 9, 2007 · Cessna 172N · N4663D
Phoenix, AZ
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 9, 2007
Injury Outcomes
2 injuries (2 minor injuries)
Location
Phoenix, AZ
Aircraft
Cessna 172N
Tail Number
N4663D
Operator
Westwind School of Aeronautics
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
SEA07CA074
The pilot was landing at his destination at the end of a cross-country flight. While turning onto final, the airplane was higher than normal and he extended the flaps to 30 degrees. The airplane was not descending normally and he looked at the flap indicator, which showed 20 degrees, although the selector arm was at 30 degrees. The pilot then moved the selector further down, attempting to obtain 30 degrees of flaps. The airplane rapidly slowed, the stall warning horn sounded, and the airplane veered sharply to the left. The pilot applied full throttle, retracted the flaps, and then the airplane impacted the ground. According to the aircraft recovery personnel, when the flaps were selected, the appropriate flap extension would occur. However, the indicator read 10 degrees off.
NTSB Probable Cause
The pilot's failure to maintain airspeed, which resulted in an inadvertent stall and uncontrolled descent into terrain during landing. A contributing factor was the pilot's distracted attention due to the inaccurate flap indicator.
Full Narrative
The pilot was landing at his destination at the end of a cross-country flight. While turning onto final, the airplane was higher than normal and he extended the flaps to 30 degrees. The airplane was not descending normally and he looked at the flap indicator, which showed 20 degrees, although the selector arm was at 30 degrees. The pilot then moved the selector further down, attempting to obtain 30 degrees of flaps. The airplane rapidly slowed, the stall warning horn sounded, and the airplane veered sharply to the left. The pilot applied full throttle, retracted the flaps, and then the airplane impacted the ground. According to the aircraft recovery personnel, when the flaps were selected, the appropriate flap extension would occur. However, the indicator read 10 degrees off.
Flight
Event TypeAccident
Event Time15:45 MST
Nearest AirportPhx Deer Valley Ap (0nm)
Runway25L
Runway Length8208 ft
Runway Width100 ft
Flight Plan FiledVFR
Aircraft FireNo
Aircraft
AircraftCessna 172N
Tail NumberN4663D
Aircraft CategoryAir
DamageSubstantial
OperatorWestwind School of Aeronautics
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsTextron Lycoming · O-320-H2AD · Reciprocating
People & Injuries
Injury Summary2 injuries (2 minor injuries)
Fatal0
Serious0
Minor2
Uninjured0
Total2
Crew 1Age 51 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 8 kt
Visibility6 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourceWFAC