# NTSB investigations, WA: 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 WPR26LA203](https://openairdocs.org/ntsb/WPR26LA203.md): Pzl-Swidnik PW-5 · Soap Lake, WA · Accident · No injuries · Class 4 · Limited · Final report · May 23, 2026 · N157AJ · Substantial damage
  > The pilot’s failure to ensure the proper preflight assembly of the glider's wing attachment system, which resulted in substantial damage to the wing structure during flight.
- [NTSB WPR25LA178](https://openairdocs.org/ntsb/WPR25LA178.md): Piper PA-28R-200 · Vancouver, WA · Accident · No injuries · Class 4 · Limited · Final report · Apr 4, 2025 · N9404N · Substantial damage
  > A failure of the brake system during landing due to a hydraulic fluid leak, which resulted in a runway excursion.
- [NTSB WPR24LA319](https://openairdocs.org/ntsb/WPR24LA319.md): Bell 206L · Fern Prairie, WA · Accident · No injuries · Class 3 · Limited · Final report · Sep 26, 2024 · N9984K · Substantial damage
  > An aeroelastic interaction between the helicopter’s main rotor blades and nodal beam system, which resulted in oscillations that exceeded the design limits of the tailboom. Contributing to the accident was the failure of the main rotor blade manufacturer to…
- [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 WPR23LA186](https://openairdocs.org/ntsb/WPR23LA186.md): Aviat A-1C-180 Husky · Lakewood, WA · Accident · Serious injuries · Class 3 · Limited · Final report · May 9, 2023 · N416AG · Destroyed
  > An erroneous landing gear warning that led to the pilot’s decision to abort the landing, which resulted in a collision with trees during a go-around.
- [NTSB WPR23LA157](https://openairdocs.org/ntsb/WPR23LA157.md): Beech 95 · Bremerton, WA · Accident · No injuries · Class 3 · Limited · Final report · Apr 5, 2023 · N21RS · Substantial damage
  > Failure of the down limit and down indicator switch and the warning horn switch assemblies, which prevented the landing gear from extending and at the same time providing a false indication that the landing gear was extended.
- [NTSB WPR18LA022](https://openairdocs.org/ntsb/WPR18LA022.md): Cessna P210N · Mount Vernon, WA · Accident · No injuries · Limited investigation · Final report · Oct 28, 2017 · N6582P · Substantial damage
  > The failure of the right main landing gear (MLG) down-lock mechanism due to an out-of-tolerance down-lock hook, which resulted in the collapse of the right MLG during the landing roll.
- [NTSB GAA18CA013](https://openairdocs.org/ntsb/GAA18CA013.md): Cessna 172RG · Auburn, WA · Accident · No injuries · Data collection · Final report · Oct 15, 2017 · N5159U · Substantial damage
  > The failure of the right main landing gear for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR17LA114](https://openairdocs.org/ntsb/WPR17LA114.md): Tappen Chris Velocity SUV · Puyallup, WA · Accident · No injuries · Limited investigation · Final report · May 30, 2017 · N399DG · Substantial damage
  > The airplane builder's failure to install safety wires on the brake disc attachment bolts, and the mechanic’s failure to identify the omission during the condition inspection. The subsequent brake disc separation resulted in a loss of directional control…
- [NTSB WPR15FA158](https://openairdocs.org/ntsb/WPR15FA158.md): Piper PA 46 350P · Spokane, WA · Accident · 2 fatal · Field investigation · Final report · May 7, 2015 · N962DA · Destroyed
  > The mechanic's incorrect installation of two aileron cables and the subsequent inadequate functional checks of the aileron system before flight by both the mechanic and the pilot, which prevented proper roll control from the cockpit, resulting in the pilot's…
- [NTSB WPR14CA386](https://openairdocs.org/ntsb/WPR14CA386.md): Cessna E162 · Bellingham, WA · Accident · Minor injuries · Data collection · Final report · Sep 21, 2014 · N6035S · Substantial damage
  > The pilot's inadequate flare and failure to maintain aircraft control during landing.
- [NTSB WPR12LA430](https://openairdocs.org/ntsb/WPR12LA430.md): Cessna 150F · Snohomish, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 2012 · N8130F · Substantial damage
  > The failure of the right wheel brake hydraulic line during the landing roll, which rendered the brake system inoperative.
- [NTSB WPR10LA479](https://openairdocs.org/ntsb/WPR10LA479.md): Piper PA-46-350P · Spokane, WA · Accident · No injuries · Limited investigation · Final report · Sep 30, 2010 · N90SE · Substantial damage
  > The failure of a manufacturing splice of the right main landing gear tire’s inner tube, which resulted in a deflated tire and a consequent loss of directional control on landing.
- [NTSB WPR10LA090](https://openairdocs.org/ntsb/WPR10LA090.md): Cessna 310 · Pasco, WA · Accident · No injuries · Limited investigation · Final report · Dec 12, 2009 · N2640C · Substantial damage
  > The failure of the right main landing gear up-lock.
- [NTSB WPR09LA371](https://openairdocs.org/ntsb/WPR09LA371.md): Sikorsky S-55 · Chelan, WA · Accident · No injuries · Limited investigation · Final report · Jul 24, 2009 · N1255T · Substantial damage
  > Failure of a seal in the hydraulic system resulting in a loss of hydraulic pressure while maneuvering at low altitude.
- [NTSB WPR09LA372](https://openairdocs.org/ntsb/WPR09LA372.md): Piper PA-30 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2009 · N7504Y · Substantial damage
  > A tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing. Contributing to the accident was the disabled landing gear warning horn.
- [NTSB WPR09LA350](https://openairdocs.org/ntsb/WPR09LA350.md): Bielawa Rotorway E · Sequim, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2009 · N3213K · Substantial damage
  > The failure (disbonding) of a composite main rotor blade for undetermined reasons, leading to an immediate loss of control in flight during hover.
- [NTSB WPR09CA349](https://openairdocs.org/ntsb/WPR09CA349.md): Evektor-Aerotechnik Sportstar · Snohomish, WA · Accident · No injuries · Data collection · Final report · Jul 15, 2009 · N827EV · Substantial damage
  > A complete loss of engine power due to the failure of the airplane's engine-driven fuel pump.
- [NTSB WPR09LA197](https://openairdocs.org/ntsb/WPR09LA197.md): Raytheon A36 · Lopez Island, WA · Accident · No injuries · Limited investigation · Final report · Apr 16, 2009 · N464TJ · Substantial damage
  > A loss of engine power during cruise flight due to oil starvation. The oil starvation event was due to the failure of maintenance personnel to tighten the aft mounting nuts for the newly installed propeller governor and the pilot’s failure to secure the oil…
- [NTSB WPR09CA002](https://openairdocs.org/ntsb/WPR09CA002.md): Piper J3C-65 · Lynden, WA · Accident · No injuries · Data collection · Final report · Oct 3, 2008 · N2146M · Substantial damage
  > The separation of the tailwheel spring retaining clip for unknown reasons, which resulted in the loss of directional control during the landing roll.
- [NTSB SEA08CA184](https://openairdocs.org/ntsb/SEA08CA184.md): Wheat Excalibur EX · Moses Lake, WA · Accident · No injuries · Data collection · Final report · Aug 18, 2008 · N2505Q · Substantial damage
  > The right rudder pedal attach rivets sheared due to overload.
- [NTSB SEA08LA147](https://openairdocs.org/ntsb/SEA08LA147.md): Aero Commander 690A · Tacoma, WA · Accident · No injuries · Limited investigation · Final report · May 30, 2008 · N115AB · Substantial damage
  > The collapse of the right main landing gear for undetermined reasons.
- [NTSB LAX08LA145](https://openairdocs.org/ntsb/LAX08LA145.md): Babcock KR-2 · Olympia, WA · Accident · No injuries · Limited investigation · Final report · May 19, 2008 · N4276Y · Substantial damage
  > A total loss of engine power during takeoff due to the carburetor's mixture needle backing out.

## 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" = 'WA' 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=WA

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