# NTSB investigations, OK: 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 CEN25LA173](https://openairdocs.org/ntsb/CEN25LA173.md): Cessna 180F · Duncan, OK · Accident · No injuries · Class 3 · Limited · Preliminary report · May 1, 2025 · N2135Z · Substantial damage
  > On April 30, 2025, about 1950 central daylight time, a Cessna 180F airplane, N2135Z, sustained substantial damage when it was involved in an accident at the Halliburton Field Airport (DUC), Duncan, Oklahoma. The pilot and passenger were not injured. The…
- [NTSB CEN20LA173](https://openairdocs.org/ntsb/CEN20LA173.md): Titan Titan Tornado S · Haskell, OK · Accident · Serious injuries · Class 3 · Limited · Final report · May 9, 2020 · N318WH · Substantial damage
  > The student pilot/builder’s addition of winglets to the stabilator, which resulted in flutter and overstress failure of the stabilator control horn.
- [NTSB CEN15CA166](https://openairdocs.org/ntsb/CEN15CA166.md): Funk B85C · Leonard, OK · Accident · No injuries · Data collection · Final report · Mar 6, 2015 · N81194 · Substantial damage
  > The improper installation of the UP elevator cable turnbuckle which became disconnected during the flight.
- [NTSB CEN11LA275](https://openairdocs.org/ntsb/CEN11LA275.md): Piper PA-32-300 · Oklahoma City, OK · Accident · No injuries · Limited investigation · Final report · Apr 7, 2011 · N31407 · Substantial damage
  > The loss of aircraft control due to the failure of the stabilator control cable turnbuckle.
- [NTSB CEN11LA200](https://openairdocs.org/ntsb/CEN11LA200.md): Hughes 369D · Henryetta, OK · Accident · No injuries · Limited investigation · Final report · Feb 23, 2011 · N112AS · Substantial damage
  > Failure of the cyclic control system for reasons undetermined.
- [NTSB CEN10CA132](https://openairdocs.org/ntsb/CEN10CA132.md): Cessna 172 · Davis, OK · Accident · No injuries · Data collection · Final report · Feb 28, 2010 · N72TN · Substantial damage
  > The flight instructor’s improper recovery from a bounced landing.

## 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" = 'OK' 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=OK

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