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 20, 2025 · Cessna 172C · N1609Y

Argyle, NY

Overview

Report Status
Probable Cause
Event Type
Accident
Date
February 20, 2025
Injury Outcomes
No injuries (1 uninjured)
Location
Argyle, NY
Aircraft
Cessna 172C (1962)
Tail Number
N1609Y
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ERA25LA123

The pilot reported that the accident flight was the first flight after an annual inspection was completed and a new oil filter adapter was installed. As part of the installation, the mechanic installed the oil temperature gauge probe into the oil filter adaptor housing. The engine was not test run and inspected for oil leaks following the installation. Before the flight, the pilot completed an engine run-up and prolonged taxi to ensure the engine was near operating temperature. During the run-up he did not notice any abnormalities and the engine gauges were indicating correctly. The takeoff and entrance into the traffic pattern were uneventful until the upwind leg when he noticed the oil pressure gauge indicated 0 psi and the engine made unusual sounds, but the engine was still running. He completed a 180° turn and set up for landing on another runway with a tailwind. The airplane was high and fast on approach, then landed long and ran off the end of the runway. The airplane nosed over in a snowbank and came to rest inverted resulting in substantial damage to both wings and empennage. After the accident, the pilot accessed the engine compartment and removed the oil filler cap where he observed no remaining oil in the engine. Postaccident examination of the airplane revealed engine oil was observed covering the engine compartment, surrounding areas, and the leading edges of the airplane. Oil was added to the engine and a functional test run was completed. An oil leak was observed from the oil temperature gauge probe that was installed in the back of the oil filter adaptor. The oil temperature probe threaded into the housing, but the oil temperature probe was not seated properly and remained loose after the attachment nut was tightened; it could not be seated without utilizing a specific adaptor fitting. The adaptor fitting was removed from the old housing and installed onto the new oil filter adaptor. After installation, the oil temperature probe seated properly.

NTSB Probable Cause

The mechanic’s incorrect installation of the oil temperature gauge probe in the oil filter adapter and failure to test run the engine for oil leaks after the installation, which resulted in a total loss of oil and the pilot’s decision to perform a precautionary landing. Contributing was the pilot’s long/fast landing, which resulted in a runway overrun.

Full Narrative

The pilot reported that the accident flight was the first flight after an annual inspection was completed and a new oil filter adapter was installed. As part of the installation, the mechanic installed the oil temperature gauge probe into the oil filter adaptor housing. The engine was not test run and inspected for oil leaks following the installation. Before the flight, the pilot completed an engine run-up and prolonged taxi to ensure the engine was near operating temperature. During the run-up he did not notice any abnormalities and the engine gauges were indicating correctly. The takeoff and entrance into the traffic pattern were uneventful until the upwind leg when he noticed the oil pressure gauge indicated 0 psi and the engine made unusual sounds, but the engine was still running. He completed at 180° turn and set up for landing on another runway with a tailwind. The airplane was high and fast on approach, then landed long and ran off the end of the runway. The airplane nosed over in a snowbank and came to rest inverted resulting in substantial damage to both wings and empennage. After the accident, the pilot accessed the engine compartment and removed the oil filler cap where he observed no remaining oil in the engine. Postaccident examination of the airplane revealed engine oil was observed covering the engine compartment, surrounding areas, and the leading edges of the airplane. Oil was added to the engine and a functional test run was completed. An oil leak was observed from the oil temperature gauge probe that was installed in the back of the oil filter adaptor. The oil temperature probe threaded into the housing, but the oil temperature probe was not seated properly and remained loose after the attachment nut was tightened.; it could not be seated without utilizing a specific adaptor fitting. The adaptor fitting was removed from the old housing and installed onto the new oil filter adaptor. After installation, the oil temperature probe seated properly.

Flight

Event TypeAccident
Event Time13:00 EST
Nearest AirportArgyle Airport (0.2nm SSW)
Runway3
Runway Length2400 ft
Runway Width87 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna 172C
Tail NumberN1609Y
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300-D · Reciprocating · 145
Seats4

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 74 · Basc · None

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingBroken clouds 12000 ft
Temperature / Dew Point19 F / 5 F
Altimeter29.94 inHg
Observation Time12:53
Weather SourceWFAC

Appendix: Source Data