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
April 15, 1983 · Mitsubishi MU-2B-26 · N79AC
West Mifflin, PA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
April 15, 1983
Injury Outcomes
No injuries (4 uninjured)
Location
West Mifflin, PA
Aircraft
Mitsubishi MU-2B-26
Tail Number
N79AC
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC83LA096
ACCORDING TO THE PILOT, HE INCREASED THE POWER, AND SUBSEQUENTLY THE AIRSPEED, WHILE ON FINAL APPROACH, TO COMPENSATE FOR STRONG WINDS AND TURBULENCE. THE WIND WAS REPORTED TO BE FROM 150 DEG. AT 18 GUSTING 28 KTS. REPORTEDLY, THE ACFT CROSSED OVER THE THRESHOLD OF RWY 10 AT AN AIRSPEED THAT WAS 30 KTS FASTER THAN NORMAL. THE PLT STATED THE ACFT LANDED HARD ON THE LEFT MAIN GEAR FIRST, THEN BEGAN TO LEAN TO THE LEFT. AT SOME POINT, THE LEFT PROPELLER HIT THE RWY AND SPARKS FLEW. THE PLT STATED THAT HE THEN PULLED UP THE ACFT, RETRACTED THE GEAR, SHUT DOWN BOTH ENGINES AND LANDED GEAR UP. AN EXAM REVEALED THAT THE TIPS OF THE LEFT PROPELLER HAD SHEARED OFF AND PENETRATED THE LEFT TIP TANK. ALSO, THE BELLY, GEAR DOORS AND LANDING GEAR WERE DAMAGED.
Full Narrative
ACCORDING TO THE PILOT, HE INCREASED THE POWER, AND SUBSEQUENTLY THE AIRSPEED, WHILE ON FINAL APPROACH, TO COMPENSATE FOR STRONG WINDS AND TURBULENCE. THE WIND WAS REPORTED TO BE FROM 150 DEG. AT 18 GUSTING 28 KTS. REPORTEDLY, THE ACFT CROSSED OVER THE THRESHOLD OF RWY 10 AT AN AIRSPEED THAT WAS 30 KTS FASTER THAN NORMAL. THE PLT STATED THE ACFT LANDED HARD ON THE LEFT MAIN GEAR FIRST, THEN BEGAN TO LEAN TO THE LEFT. AT SOME POINT, THE LEFT PROPELLER HIT THE RWY AND SPARKS FLEW. THE PLT STATED THAT HE THEN PULLED UP THE ACFT, RETRACTED THE GEAR, SHUT DOWN BOTH ENGINES AND LANDED GEAR UP. AN EXAM REVEALED THAT THE TIPS OF THE LEFT PROPELLER HAD SHEARED OFF AND PENETRATED THE LEFT TIP TANK. ALSO, THE BELLY, GEAR DOORS AND LANDING GEAR WERE DAMAGED.
Flight
Event TypeAccident
Event Time21:17 EST
Nearest AirportAllegheny Company (0nm N)
Runway10
Runway Length6500 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMitsubishi MU-2B-26
Tail NumberN79AC
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines2
Engine TypeTurboprop
Engine DetailsAiresearch · TPE-331 · Turboprop · 724
Seats8
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 25 · First Class
Conditions
ConditionsVMC
LightDark Night
Wind150° @ 18 kt, gusting 28 kt
Visibility10 sm
CeilingOvercast 3000 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO