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

February 4, 1983 · Maule M-5-220C · N51599

Near Asotin, WA

Overview

Report Status
Preliminary report
Event Type
Accident
Date
February 4, 1983
Injury Outcomes
4 injuries (1 serious injury, 3 minor injuries)
Location
Near Asotin, WA
Aircraft
Maule M-5-220C
Tail Number
N51599
Operator
Thomas L Jordan
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
SEA83FA052

WHILE FLYING IN THE VICINITY OF THE SNAKE RIVER, THE ENGINE LOST POWER. EMERGENCY LANDING AREAS WERE LIMITED. THE PLT ELECTED TO LAND ON A ROAD NEAR THE RIVER. WHILE IN A RIGHT TURN TO LINE UP WITH THE ROAD, THE ACFT COLLIDED WITH A SINGLE POWER LINE, THEN CRASHED. AN INVESTIGATION REVEALED THAT TE #5 PISTON PIN, PN 17658, HAD FAILED. THE AFT PISTON PIN BOSS HAD FAILED, WHICH PERMITTED THE FREE END OF THE CONNECTING ROD TO DAMAGE THE #5 CYLINDER AND THE CRANKCASE IN THE VICINITY OF THE #5 AND #6 CRANKSHAFT THROWS. TOTAL FLT TIME OF THE ENGINE WAS 699.5 HRS.

Full Narrative

WHILE FLYING IN THE VICINITY OF THE SNAKE RIVER, THE ENGINE LOST POWER. EMERGENCY LANDING AREAS WERE LIMITED. THE PLT ELECTED TO LAND ON A ROAD NEAR THE RIVER. WHILE IN A RIGHT TURN TO LINE UP WITH THE ROAD, THE ACFT COLLIDED WITH A SINGLE POWER LINE, THEN CRASHED. AN INVESTIGATION REVEALED THAT TE #5 PISTON PIN, PN 17658, HAD FAILED. THE AFT PISTON PIN BOSS HAD FAILED, WHICH PERMITTED THE FREE END OF THE CONNECTING ROD TO DAMAGE THE #5 CYLINDER AND THE CRANKCASE IN THE VICINITY OF THE #5 AND #6 CRANKSHAFT THROWS. TOTAL FLT TIME OF THE ENGINE WAS 699.5 HRS.

Flight

Event TypeAccident
Event Time09:45 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMaule M-5-220C
Tail NumberN51599
Aircraft CategoryAir
DamageDestroyed
OperatorThomas L Jordan
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A-350-C1 · Reciprocating · 220
Seats4

People & Injuries

Injury Summary4 injuries (1 serious injury, 3 minor injuries)
Fatal0
Serious1
Minor3
Uninjured0
Total4
Crew 1Age 39 · Third Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point28 C / 25 C
Altimeter29.00 inHg
Weather SourcePILO

Appendix: Source Data