# NTSB investigations, WY: 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 WPR26LA075](https://openairdocs.org/ntsb/WPR26LA075.md): Maule M-5-235C · Jay Em, WY · Accident · No injuries · Class 4 · Limited · Final report · Jan 1, 2026 · N56500 · Substantial damage
  > The loss of directional control and subsequent nose over due to the inadvertent engagement of the right wheel parking brake as a result of cabin floor carpeting migrating between the right brake master cylinder and parking brake locking lever.
- [NTSB WPR20LA301](https://openairdocs.org/ntsb/WPR20LA301.md): Lake LA4 · Rawlins, WY · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 25, 2020 · N93AB · Substantial damage
  > The pilot’s decision to depart despite a known mechanical trim malfunction and with a high-density altitude and the airplane at or above its maximum gross weight.
- [NTSB WPR11LA218](https://openairdocs.org/ntsb/WPR11LA218.md): Piper PA46-500TP · Rock Springs, WY · Accident · No injuries · Limited investigation · Final report · May 3, 2011 · N46ME · Substantial damage
  > The overstress fracture of the right aileron midspan hinge bracket due to modal vibrations created by a deflated right main landing gear tire during the takeoff roll.
- [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 DCA08IA044](https://openairdocs.org/ntsb/DCA08IA044.md): Airbus Industrie A320 · Jackson, WY · Incident · Minor injuries · Incident investigation · Final report · Feb 26, 2008 · N442UA · Minor damage
  > the loss of braking action on the left main landing gear due to the cross connection of the wheel speed tachometer wires that was caused by inadequate maintenance performed on the airplane during the installation of the main landing gear.

## 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" = 'WY' 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=WY

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