# NTSB investigations, TX: Part(s) separation from AC

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 CEN25LA117](https://openairdocs.org/ntsb/CEN25LA117.md): Vans RV-7A · Plainview, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 10, 2025 · N923ZA · Substantial damage
  > The improper machining of the propeller blade bearing seat, which resulted in an inflight propeller blade fatigue failure. Contributing to the accident was the improper machining of the propeller hub and propeller blade root and machining surface quality…
- [NTSB CEN21LA450](https://openairdocs.org/ntsb/CEN21LA450.md): Cessna 140 · Caddo Mills, TX · Accident · No injuries · Class 4 · Limited · Final report · Jul 22, 2021 · N84BC · Substantial damage
  > The missing vertical stabilizer hardware, which resulted in a severe uncommanded yawing motion that necessitated an emergency landing, during which the airplane nosed over and sustained substantial damage to the vertical stabilizer.
- [NTSB CEN20LA082](https://openairdocs.org/ntsb/CEN20LA082.md): Cessna 560 · Aledo, TX · Accident · No injuries · Class 3 · Limited · Final report · Feb 12, 2020 · N654CE · Substantial damage
  > The in-flight separation of the upper and lower right engine cowlings for reasons that could not be determined based on available evidence.
- [NTSB CEN19LA166](https://openairdocs.org/ntsb/CEN19LA166.md): Beech E90 · Greenville, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 12, 2019 · N176TW · Substantial damage
  > The fatigue failure of the right main landing gear upper torque knee.
- [NTSB CEN19LA133](https://openairdocs.org/ntsb/CEN19LA133.md): Cirrus SR20 · Mineral Wells, TX · Accident · No injuries · Class 3 · Limited · Final report · May 2, 2019 · N8160C · Substantial damage
  > The in-flight separation of the right aileron when the inboard hinge bolt disengaged from its nut plate due to excessively twisted safety wire, which resulted in a torsional overstress fracture that caused the inboard hinge bolt to become unsecured.
- [NTSB CEN17LA033](https://openairdocs.org/ntsb/CEN17LA033.md): North American TB 25N · Dallas, TX · Accident · No injuries · Limited investigation · Final report · Oct 29, 2016 · N25YR · Substantial damage
  > The overstress failure of the landing gear connecting rod and the improper installation of the arresting cables, which allowed the landing gear door to depart in flight and impact the airplane.
- [NTSB CEN15TA035](https://openairdocs.org/ntsb/CEN15TA035.md): Bell UH1H · San Isidro, TX · Accident · No injuries · Final report · Oct 23, 2014 · N72595 · Substantial damage
  > The flight crew's failure to ensure that the sliding cabin door was properly secured before the flight.
- [NTSB CEN14LA118](https://openairdocs.org/ntsb/CEN14LA118.md): Grumman American Avn. AA 5B · Willow Park, TX · Accident · No injuries · Limited investigation · Final report · Jan 21, 2014 · N28578 · Substantial damage
  > The improper reinstallation of the propeller assembly, which resulted in the subsequent in-flight separation of the propeller.
- [NTSB CEN12IA518](https://openairdocs.org/ntsb/CEN12IA518.md): Bell 407 · San Antonio, TX · Incident · No injuries · Incident investigation · Final report · Aug 5, 2012 · N429PH · Minor damage
  > The pilot’s failure to maintain clearance from a tower guy wire during the approach to a helipad at night.
- [NTSB CEN11LA555](https://openairdocs.org/ntsb/CEN11LA555.md): Piper PA-28-180 · Millsap, TX · Accident · No injuries · Limited investigation · Final report · Aug 7, 2011 · N7689W · Substantial damage
  > A sudden loss of engine thrust due to the separation of a propeller blade in cruise flight due to high cycle fatigue.
- [NTSB CEN11LA226](https://openairdocs.org/ntsb/CEN11LA226.md): Robinson Helicopter R22 Beta · Bulverde, TX · Accident · No injuries · Limited investigation · Final report · Mar 9, 2011 · N112HE · Substantial damage
  > The in-flight separation of the fuel cap, which impacted the helicopter’s tail rotor and resulted in the loss of tail rotor thrust. Contributing to the accident was the inadequate preflight inspection by both pilots, who did not ensure that the fuel cap was…
- [NTSB CEN10FA291](https://openairdocs.org/ntsb/CEN10FA291.md): Bell 222 · Midlothian, TX · Accident · 2 fatal · Field investigation · Final report · Jun 2, 2010 · N515MK · Substantial damage
  > The fracture of a swashplate drive pin as a result of hydrogen embrittlement due to an unknown source, which resulted in an in-flight breakup of the main rotor system during cruise flight.
- [NTSB CEN09CA584](https://openairdocs.org/ntsb/CEN09CA584.md): Yates W/Lazar M Safari Helicopter · Cedar Park, TX · Accident · Minor injuries · Data collection · Final report · Sep 13, 2009 · N555BB · Substantial damage
  > An in-flight separation of the tail rotor blades and the tail rotor gearbox for undetermined reasons.
- [NTSB CEN09LA384](https://openairdocs.org/ntsb/CEN09LA384.md): Stinson 108-3 · Llano, TX · Accident · No injuries · Limited investigation · Final report · Jun 24, 2009 · N6939M · Substantial damage
  > The pilot's inability to maintain aircraft control due to the failure of the left main landing gear wheel, which resulted in the separation of the wheel from the aircraft.

## 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" = 'TX' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '338')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/338/cases?state=TX

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