# NTSB investigations: Continental I0-470 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 ERA24LA307](https://openairdocs.org/ntsb/ERA24LA307.md): Beech 95-B55 · Greenville, NC · Accident · No injuries · Class 4 · Limited · Final report · Jul 1, 2024 · N9308Q · Substantial damage
  > A landing with the nose gear retracted as a result of an intermittent landing gear relay.
- [NTSB CEN24LA018](https://openairdocs.org/ntsb/CEN24LA018.md): Cessna 210B · Pueblo, CO · Accident · No injuries · Class 3 · Limited · Final report · Oct 18, 2023 · N9597X · Substantial damage
  > The fatigue failure of the right main landing gear hydraulic actuator, which resulted in a loss of hydraulic fluid that prevented the pilot from lowering the landing gear to the fully extended position.
- [NTSB WPR23LA213](https://openairdocs.org/ntsb/WPR23LA213.md): Cessna 210 · Tacoma, WA · Accident · No injuries · Class 3 · Limited · Final report · May 30, 2023 · N9574X · Substantial damage
  > A fatigue failure of the left main landing gear hydraulic actuator, which resulted in a loss of hydraulic fluid that prevented the pilot from lowering the landing gear to the fully extended position and maintaining directional control after landing.
- [NTSB CEN22LA378](https://openairdocs.org/ntsb/CEN22LA378.md): Cessna 210B · Clinton, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2022 · N9637X · Substantial damage
  > A fatigue crack in the hydraulic actuator, which resulted in the loss of hydraulic fluid and the pilot’s inability to fully extend the landing gear.
- [NTSB WPR20LA288](https://openairdocs.org/ntsb/WPR20LA288.md): Cessna 210 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 26, 2020 · N9540T · Substantial damage
  > The failure of the engine-driven hydraulic pump, which resulted in the main landing gear not fully extending and locking into place during landing. Contributing to the accident was the failure of the emergency gear extension system for reasons that could not…
- [NTSB ERA19LA268](https://openairdocs.org/ntsb/ERA19LA268.md): Beech K35 · St. Augustine, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 11, 2019 · N5300E · Substantial damage
  > An unintended brake application of the right main landing gear brake system during the landing rollout due to excessive play between the brake caliper anchor bolts and their bushings.
- [NTSB ERA19LA255](https://openairdocs.org/ntsb/ERA19LA255.md): Cessna 310 · Tampa, FL · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2019 · N2299F · Substantial damage
  > The failure of the right main landing gear to fully extend and lock for reasons that could not be determined.
- [NTSB WPR17LA061](https://openairdocs.org/ntsb/WPR17LA061.md): Beech 95 B55 (T42A) · Cameron Park, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 1, 2017 · N321BJ · Substantial damage
  > Failure of the landing gear to extend as a result of excessive wear within the landing gear gearbox and motor, which resulted in a gear-up landing.
- [NTSB WPR15LA038](https://openairdocs.org/ntsb/WPR15LA038.md): Cessna 210B · Bullhead City, AZ · Accident · No injuries · Limited investigation · Final report · Nov 8, 2014 · N9578X · Substantial damage
  > The failure of the landing gear actuator housing during landing for reasons that could not be determined based on the available evidence.
- [NTSB ANC14CA077](https://openairdocs.org/ntsb/ANC14CA077.md): Cessna 185 · Gakona, AK · Accident · No injuries · Data collection · Final report · Sep 7, 2014 · N432X · Substantial damage
  > The pilot's inability to maintain directional control after the airplane's main landing gear tire deflated during takeoff.
- [NTSB WPR14LA059](https://openairdocs.org/ntsb/WPR14LA059.md): Cessna 210 · Florence, OR · Accident · No injuries · Limited investigation · Final report · Nov 29, 2013 · N6575X · Substantial damage
  > The failure of the hydraulic power pack, which prevented the extension of the landing gear and resulted in a partial gear-up landing.
- [NTSB ANC13CA075](https://openairdocs.org/ntsb/ANC13CA075.md): Cessna 185D · North Pole, AK · Accident · No injuries · Data collection · Final report · Aug 8, 2013 · N75LE · Substantial damage
  > The malfunction of the right main wheel brake during taxi due to a faulty O-ring in the right brake pedal master cylinder.
- [NTSB ERA10LA005](https://openairdocs.org/ntsb/ERA10LA005.md): Cessna 210 · Louisville, KY · Accident · No injuries · Limited investigation · Final report · Oct 4, 2009 · N9443T · Substantial damage
  > A malfunction of the landing gear extension system due to a fractured hydraulic line. Contributing to the accident was the inadequate inspection and maintenance of the hydraulic line.
- [NTSB ANC09LA100](https://openairdocs.org/ntsb/ANC09LA100.md): Grumman G-44A · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Sep 17, 2009 · N86627 · Substantial damage
  > A fatigue fracture of an unapproved hydraulic brake line fitting, which resulted in a loss of control during the landing roll. Contributing to the accident was the installation of an unapproved part by an unknown maintenance personnel.
- [NTSB WPR09CA059](https://openairdocs.org/ntsb/WPR09CA059.md): Cessna 210 · Sheridan, WY · Accident · No injuries · Data collection · Final report · Dec 17, 2008 · N9619T · Substantial damage
  > Maintenance personnel's failure to reinstall the left front pilot's seat correctly, which resulted in the pilot's loss of control and subsequent impact with a taxiway sign.
- [NTSB DEN08LA153](https://openairdocs.org/ntsb/DEN08LA153.md): Cessna 210 · Pagosa Springs, CO · Accident · No injuries · Limited investigation · Final report · Sep 7, 2008 · N6515X · Substantial damage
  > The failure of the landing gear to extend for undetermined reasons.

## 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 ('17027')
    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=17027

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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.