# NTSB investigations, AZ: Flight control sys malf/fail

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 WPR26LA258](https://openairdocs.org/ntsb/WPR26LA258.md): Remos Acft Gmbh Flugzeugbau Remos GX · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 12, 2026 · N126GX · Substantial damage
  > On July 12, 2026, at 1018 mountain standard time, a Remos GX airplane, N126GX, was substantially damaged when it was involved in an accident near Glendale, Arizona. The flight instructor and student pilot were uninjured. The airplane was operated as a Title…
- [NTSB WPR24LA038](https://openairdocs.org/ntsb/WPR24LA038.md): Beech 95 · Yuma, AZ · Accident · No injuries · Class 3 · Limited · Final report · Nov 18, 2023 · N2024C · Substantial damage
  > Aeroelastic flutter of the rudder control surface during the takeoff initial climb for reasons that could not be determined based on the available evidence, which resulted in the fracture of the rudder trim control rod end in flight.
- [NTSB WPR20LA004](https://openairdocs.org/ntsb/WPR20LA004.md): Glaser Dirks DG500 · Marana, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 6, 2019 · N600TT · Substantial damage
  > The pilots’ exceedance of the glider’s never-exceed speed (VNE) during recovery from an intentional aerobatic maneuver, which resulted in a failure of the right-wing air brake control drive, asymmetrical air brake deployment, and a subsequent hard landing.
- [NTSB WPR17LA002](https://openairdocs.org/ntsb/WPR17LA002.md): Tamarack Helicopters UH-1H · Gila Bend, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 5, 2016 · N175SF · Substantial damage
  > The separation of the 90° tail rotor gearbox assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs due to the helicopter experiencing highly repetitive agricultural flight profiles for which it was not designed.
- [NTSB WPR15LA249](https://openairdocs.org/ntsb/WPR15LA249.md): Schweizer 269C - Undesignat · Mesa, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 23, 2015 · N315TV · Substantial damage
  > The disbondment of a main rotor damper, which resulted in the degradation of its damping action and led to excessive main rotor vibrations and oscillations that caused substantial damage to the helicopter in flight and led to a hard landing.
- [NTSB WPR12LA107](https://openairdocs.org/ntsb/WPR12LA107.md): Bell AH-1F · Coolidge, AZ · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 2012 · N197LE · Substantial damage
  > A flight control malfunction while maneuvering for reasons that could not be determined because postaccident examination revealed no evidence of a mechanical malfunction or failure that would have precluded normal operation.

## 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" = 'AZ' 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" = '333' 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/333/sequence?state=AZ

---
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.