# NTSB investigations, OR: 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 WPR22LA003](https://openairdocs.org/ntsb/WPR22LA003.md): Interstate S-1A · Independence, OR · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2021 · N37317 · Substantial damage
  > The separation of the left rudder pedal interconnect cable during takeoff, which resulted in the student pilot’s inability to maintain directional control.
- [NTSB WPR21LA337](https://openairdocs.org/ntsb/WPR21LA337.md): Cessna 172E · Enterprise, OR · Accident · No injuries · Class 3 · Limited · Final report · Sep 2, 2021 · N3965S · Substantial damage
  > The fatigue fracture of the nose gear upper torque link, which resulted in the separation of the torque link from the shock strut and a loss of directional control.
- [NTSB WPR21LA362](https://openairdocs.org/ntsb/WPR21LA362.md): Maule MX-7-235 · Ontario, OR · Accident · No injuries · Class 3 · Limited · Final report · Mar 28, 2021 · N235X · Substantial damage
  > A loss of hydraulic fluid and failure of the right brake for reasons that could not be determined due to a lack of available evidence.
- [NTSB WPR19LA237](https://openairdocs.org/ntsb/WPR19LA237.md): Cessna T210 · Eugene, OR · Accident · No injuries · Class 3 · Limited · Final report · Aug 20, 2019 · N501SF · Substantial damage
  > The failure of the landing gear electric motor to shut off after landing gear retraction, which resulted in the motor overheating, burning out, and producing smoke in the cockpit. The pilot’s decision to land with the landing gear retracted resulted in…
- [NTSB WPR17LA192](https://openairdocs.org/ntsb/WPR17LA192.md): Maule M 7-235C · Klamath Falls, OR · Accident · No injuries · Limited investigation · Final report · Aug 24, 2017 · N6447M · Substantial damage
  > The pilot's failure to follow the pre-takeoff checklist and the failure of the left main landing gear brake due to a damaged brake master cylinder piston rod, which resulted in a stuck left brake and subsequent loss of control during the landing roll.
- [NTSB WPR16LA068](https://openairdocs.org/ntsb/WPR16LA068.md): Cessna 140 · Independence, OR · Accident · No injuries · Limited investigation · Final report · Feb 13, 2016 · N3625V · Substantial damage
  > The failure of the left main landing gear wheel axle due to a fatigue crack.
- [NTSB WPR16LA081](https://openairdocs.org/ntsb/WPR16LA081.md): Mcdonnell Douglas Helicopter 600N · Ashland, OR · Accident · No injuries · Limited investigation · Final report · Feb 5, 2016 · N745BW · Substantial damage
  > Fatigue cracking of a main rotor blade for reasons that could not be determined based on the available information.
- [NTSB WPR16LA060](https://openairdocs.org/ntsb/WPR16LA060.md): Piper PA46 · Burns, OR · Accident · No injuries · Limited investigation · Final report · Jan 31, 2016 · N777PG · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination revealed no evidence of an anomaly that would have precluded normal operation. Contributing to the accident was a preexisting landing gear anomaly that…
- [NTSB WPR16LA023](https://openairdocs.org/ntsb/WPR16LA023.md): Thorp T 18 · Independence, OR · Accident · No injuries · Limited investigation · Final report · Nov 6, 2015 · N1488 · Substantial damage
  > A separation of the canopy mechanism during flight, which resulted in the pilot’s precautionary landing and the airplane’s subsequent collision with a fence post.
- [NTSB WPR15LA228](https://openairdocs.org/ntsb/WPR15LA228.md): Hudson Zodiac CH 601 XLB · Hubbard, OR · Accident · No injuries · Limited investigation · Final report · Aug 2, 2015 · N234S · Substantial damage
  > A severe propeller vibration due to the pilot's improper installation of the propeller spacer assembly, which necessitated an engine shutdown, an off-airport landing, and a collision with a sprinkler system.
- [NTSB WPR15FA205](https://openairdocs.org/ntsb/WPR15FA205.md): Schweizer 269C · Newberg, OR · Accident · 2 fatal · Field investigation · Final report · Jul 2, 2015 · N2096W · Destroyed
  > The loss of translation/rotational power between the engine and the transmission due to the severe wear of the forward spline portion of the lower coupling drive shaft. The reason for the severe wear of the forward spline could not be definitively determined…
- [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 WPR13LA322](https://openairdocs.org/ntsb/WPR13LA322.md): Piper PA-28-235 · Albany, OR · Accident · No injuries · Limited investigation · Final report · Jul 7, 2013 · N8606W · Substantial damage
  > The loss of hydraulic fluid, which rendered the brakes ineffective. The reason for the loss of hydraulic fluid could not be determined based on the available evidence.
- [NTSB WPR13LA102](https://openairdocs.org/ntsb/WPR13LA102.md): Cessna 172RG · Redmond, OR · Accident · No injuries · Limited investigation · Final report · Jan 18, 2013 · N6290V · Substantial damage
  > Failure of the left main landing gear pivot assembly during the landing approach.
- [NTSB WPR12LA366](https://openairdocs.org/ntsb/WPR12LA366.md): Piper PA-30 B · Scappoose, OR · Accident · No injuries · Limited investigation · Final report · Aug 23, 2012 · N222BP · Substantial damage
  > The failure of the landing gear to fully extend as a result of a failure of the landing gear transmission assembly for reasons that could not be determined based on the available evidence.
- [NTSB WPR11CA358](https://openairdocs.org/ntsb/WPR11CA358.md): Mcdonald Lynn B Avid Flyer Mark IV · Yamhill, OR · Accident · No injuries · Data collection · Final report · Jul 31, 2011 · N30456 · Substantial damage
  > The pilot’s loss of directional control during landing rollout due to an unlocked tail wheel that was caused by a degradation of the tailwheel assembly mounting angle.
- [NTSB WPR10LA140](https://openairdocs.org/ntsb/WPR10LA140.md): Cessna 210L · Aurora, OR · Accident · No injuries · Limited investigation · Final report · Feb 18, 2010 · N777FW · Substantial damage
  > The failure of the landing gear to properly function for undetermined reasons, resulting in the right main landing gear collapsing during landing. Contributing to the accident was the pilot's failure to follow the emergency gear extension procedure.
- [NTSB WPR09CA478](https://openairdocs.org/ntsb/WPR09CA478.md): Cessna T210J · Albany, OR · Accident · No injuries · Data collection · Final report · Sep 14, 2009 · N899KM · Substantial damage
  > The malfunction of the left main wheel brake during landing due to inadequate hydraulic fluid in the left brake pedal master cylinder due to leakage.
- [NTSB LAX08LA201](https://openairdocs.org/ntsb/LAX08LA201.md): Cessna A185F · Rainier, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 2008 · N5403E · Substantial damage
  > The inadvertent extension of the left float's landing gear to near the down position due to a failure of the gear's rear hydraulic seal.
- [NTSB SEA08LA157](https://openairdocs.org/ntsb/SEA08LA157.md): Rockwell 690B · Baker City, OR · Accident · No injuries · Limited investigation · Final report · Jun 25, 2008 · N9KG · Substantial damage
  > The landing gear collapse during the landing roll due to the fracture of the inboard hydraulic cylinder clevis pin housing boss for undetermined reasons.
- [NTSB LAX08IA093](https://openairdocs.org/ntsb/LAX08IA093.md): Bennett Lancair 320 · Hillsboro, OR · Incident · No injuries · Incident investigation · Final report · Apr 2, 2008 · N456 · Minor damage
  > The malfunction of the airplane's battery and alternator that resulted in the failure of the landing gear to extend and lock in place.

## 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."eventStateOrRegion" = 'OR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '330' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/330/sequence?state=OR

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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.