# NTSB investigations: Continental TSIO-520 series: Sys/Comp malf/fail (non-power)

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN26LA270](https://openairdocs.org/ntsb/CEN26LA270.md): Cessna P210R · Arkadelphia, AR · Accident · No injuries · Class 4 · Limited · Investigation open · Jul 23, 2026 · N5258A · Substantial damage
- [NTSB ERA24LA386](https://openairdocs.org/ntsb/ERA24LA386.md): Cessna 402 · Boston, MA · Accident · No injuries · Class 3 · Limited · Final report · Sep 17, 2024 · N18VV · Substantial damage
  > The failure of a solid hydraulic fluid line, which resulted in a loss of hydraulic fluid that prevented the landing gear extension process from completing normally. Contributing to the outcome was the pilot’s failure to fully activate the emergency landing…
- [NTSB CEN24LA062](https://openairdocs.org/ntsb/CEN24LA062.md): Cessna 340A · New Orleans, LA · Accident · No injuries · Class 4 · Limited · Final report · Dec 12, 2023 · N7067W · Substantial damage
  > The improper maintenance of the main landing gear, which resulted in a collapse and overstress failure of the left main landing gear during landing.
- [NTSB ERA23LA101](https://openairdocs.org/ntsb/ERA23LA101.md): Cessna 340A · Atlantic Ocean, Turks & Caicos Islands · Accident · No injuries · Class 4 · Limited · Final report · Jan 3, 2023 · N824BC · Substantial damage
  > A fuel system malfunction for reasons that could not be determined, which resulted in fuel starvation to both engines.
- [NTSB ERA22LA272](https://openairdocs.org/ntsb/ERA22LA272.md): Cessna 414 · Monongahela, PA · Accident · No injuries · Class 3 · Limited · Final report · Jun 19, 2022 · N1996G · Substantial damage
  > Loss of braking authority due to a loosened brake line fitting for reasons that could not be determined, which resulted in a runway overrun.
- [NTSB CEN21LA460](https://openairdocs.org/ntsb/CEN21LA460.md): Cessna P210N · El Paso, TX · Accident · No injuries · Class 4 · Limited · Final report · Sep 28, 2021 · N4614K · Substantial damage
  > A faulty landing gear pressure switch prematurely deactivated the landing gear motor during extension, which resulted in the landing gear collapsing during rollout.
- [NTSB GAA21WA026](https://openairdocs.org/ntsb/GAA21WA026.md): Cessna 340A · Toulouse, France · Accident · No injuries · Class 5 · Foreign · Feb 2, 2021 · N8618G · Substantial damage
- [NTSB ERA20CA100](https://openairdocs.org/ntsb/ERA20CA100.md): Cessna 402 · Barnstable, MA · Accident · No injuries · Data collection · Final report · Feb 12, 2020 · N409BK · Substantial damage
  > The pilot's failure to properly secure the crew hatch door before takeoff, which resulted in the door’s forward hinge assembly tearing from its fuselage mount point.
- [NTSB CEN19LA059](https://openairdocs.org/ntsb/CEN19LA059.md): Cessna T210 · Flint, MI · Accident · No injuries · Limited investigation · Final report · Jan 6, 2019 · N1237M · Substantial damage
  > The failure of the nose landing gear actuator hydraulic hose, which resulted in the loss of hydraulic fluid and hydraulic system pressure and a subsequent gear-up landing.
- [NTSB CEN17LA039](https://openairdocs.org/ntsb/CEN17LA039.md): Cessna P210N · Pleasanton, TX · Accident · Serious injuries · Limited investigation · Final report · Nov 13, 2016 · N44C · Substantial damage
  > Maintenance personnel's improper installation of the throttle linkage attachment hardware, which resulted in a partial loss of engine power when the hardware separated in flight.
- [NTSB ERA16FA185](https://openairdocs.org/ntsb/ERA16FA185.md): Beech A36TC · Tupelo, MS · Accident · 4 fatal · Field investigation · Final report · May 16, 2016 · N60RW · Destroyed
  > A preexisting stress rupture that initiated at a spot weld in the turbocharger v-band exhaust clamp, which resulted in the failure of the clamp and separation of the exhaust tailpipe, an in-flight fire, and subsequent impact with terrain.
- [NTSB WPR13LA274](https://openairdocs.org/ntsb/WPR13LA274.md): Cessna T210L · Fresno, CA · Accident · No injuries · Limited investigation · Final report · Jun 16, 2013 · N94086 · Substantial damage
  > A hydraulic fluid leak in the nose landing gear actuator rod seal, which prevented the hydraulic system from building up sufficient pressure to fully retract or extend the main landing gear.
- [NTSB WPR13LA184](https://openairdocs.org/ntsb/WPR13LA184.md): Beech A36TC · Big Bear City, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 6, 2013 · N36SG · Substantial damage
  > The improper overhaul of the propeller, which resulted in the installation of an incorrect propeller actuating pin and deformation of the ferrule hole and led to the pin’s fatigue failure. Contributing to the accident was the failure of multiple owners and…
- [NTSB ERA12IA550](https://openairdocs.org/ntsb/ERA12IA550.md): Cessna 402C · Nantucket, MA · Incident · No injuries · Incident investigation · Final report · Aug 31, 2012 · N769EA · Minor damage
  > Company maintenance personnel’s failure to comply with the airplane manufacturer’s service instructions by not removing the cracked drag brace from service nor inspecting the repaired drag brace at the appropriate interval, which resulted in the failure of…
- [NTSB CEN12LA420](https://openairdocs.org/ntsb/CEN12LA420.md): Cessna T210M · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · Jul 20, 2012 · N311TM · Substantial damage
  > The failure of the right hydraulic main gear down-lock actuator hose in flight.
- [NTSB CEN11CA640](https://openairdocs.org/ntsb/CEN11CA640.md): Cessna T210M · Cahokia, IL · Accident · No injuries · Data collection · Final report · Aug 25, 2011 · N44HR · Substantial damage
  > A failure of a spring in the main landing gear actuation system that prevented the landing gear from extending.
- [NTSB ERA10IA384](https://openairdocs.org/ntsb/ERA10IA384.md): Cessna 402C · San Juan, PR · Incident · No injuries · Incident investigation · Final report · Jul 27, 2010 · N402VN · Minor damage
  > The airplane manufacturer’s inadequate inspection procedures, resulting in the undetected fatigue cracking of the right upper barrel and trunnion assembly.
- [NTSB ERA10LA128](https://openairdocs.org/ntsb/ERA10LA128.md): Cessna 402C · Watertown, NY · Accident · No injuries · Limited investigation · Final report · Feb 1, 2010 · N121PB · Substantial damage
  > The pilot's decision to continue the approach with a known anomaly with the left airspeed indicator. Contributing to the accident was an undetermined malfunction of the left airspeed indicator and the condition of the runway, resulting in decreased braking…
- [NTSB CEN10LA014](https://openairdocs.org/ntsb/CEN10LA014.md): Cessna T210L · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Oct 14, 2009 · N211LC · Substantial damage
  > The mechanic's failure to find and repair a leaking main landing gear hydraulic line during an annual inspection.
- [NTSB CEN09LA417](https://openairdocs.org/ntsb/CEN09LA417.md): Cessna T210L · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Jul 1, 2009 · N2118S · Substantial damage
  > The failure of the landing gear accumulator seal for undetermined reasons. Contributing to the accident was the pilot’s failure to confirm the status of the landing gear.
- [NTSB LAX08LA086](https://openairdocs.org/ntsb/LAX08LA086.md): Cessna 402 · Henderson, NV · Accident · No injuries · Limited investigation · Final report · Mar 26, 2008 · N4010Q · Substantial damage
  > The failure of the left main landing gear torque link assembly for undetermined reasons.
- [NTSB MIA08LA079](https://openairdocs.org/ntsb/MIA08LA079.md): Cessna 402B · Fort Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Mar 15, 2008 · N300SH · Substantial damage
  > The improper adjustment of the right main landing gear down lock by maintenance personnel resulting in the gear collapse during the landing roll..

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17040')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '330'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/330/cases?engine=17040

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.