# NTSB investigations: Central warning

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 WPR23LA306](https://openairdocs.org/ntsb/WPR23LA306.md): Boeing CH-46E · Springerville, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 5, 2023 · N461WY · Destroyed
  > The flight crew’s misidentification of a No. 2 torque sensing system signal conditioner malfunction when both engines were performing normally, which resulted in their attempt to execute a single-engine steep approach and landing without sufficient engine…
- [NTSB CEN23LA130](https://openairdocs.org/ntsb/CEN23LA130.md): Robinson Helicopter R44 · De Kalb, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 11, 2023 · N4164T · Substantial damage
  > The pilot’s inability to maintain control of the helicopter due to his failure to maintain rotor speed. Contributing to the accident was the failure of the helicopter’s low rotor speed warning system.
- [NTSB CEN20LA028](https://openairdocs.org/ntsb/CEN20LA028.md): BAE BAE125 · Detroit, MI · Accident · No injuries · Class 3 · Limited · Final report · Dec 3, 2019 · N469RJ · Substantial damage
  > The pilots’ failure to increase approach speed as recommended for flight in icing conditions, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the failure of the stall warning system to advise the…
- [NTSB WPR19FA230](https://openairdocs.org/ntsb/WPR19FA230.md): Cessna 560XL · Oroville, CA · Accident · No injuries · Class 3 · Field · Final report · Aug 21, 2019 · N91GY · Destroyed
  > The pilot’s failure to release the parking brake before attempting to initiate the takeoff, which produced an unexpected retarding force and airplane nose down pitching moment. Also causal was the flight crew’s delayed decision to abort the takeoff, which…
- [NTSB CEN19MA141](https://openairdocs.org/ntsb/CEN19MA141.md): De Havilland DHC-2 · Ketchikan, AK · Accident · 6 fatal · Class 1 · Major · Final report · May 13, 2019 · N952DB · 2 aircraft · Destroyed
  > The inherent limitations of the see-and-avoid concept, which prevented the two pilots from seeing the other airplane before the collision, and the absence of visual and aural alerts from both airplanes’ traffic display systems, while operating in a geographic…
- [NTSB DCA18CA283](https://openairdocs.org/ntsb/DCA18CA283.md): Airbus A321-271N · Los Angeles, CA · Accident · No injuries · Class 4 · Data collection · Final report · Aug 13, 2018 · N204HA · Substantial damage
  > a tailstrike caused by inappropriate recovery technique after a bounced landing. Contributing to the accident was the failure of the radio altimeter, caused by the approach being over calm/flat water, that was not recognized by the flight crew.
- [NTSB ERA17LA125](https://openairdocs.org/ntsb/ERA17LA125.md): Grob G120TP-A · Abbeville, AL · Accident · Serious injuries · Class 2 · Limited · Final report · Mar 8, 2017 · N196TP · Substantial damage
  > The flame-out of the engine due to a mis-set fuel control unit at the time of manufacture. Contributing to the accident was the pilots’ delayed recognition that the engine had flamed out, partially due to the operator’s requirement to disable the crew…
- [NTSB CEN10CA533](https://openairdocs.org/ntsb/CEN10CA533.md): Piper PA46-310P · Farmington, NM · Accident · No injuries · Data collection · Final report · Sep 12, 2010 · N24WW · Substantial damage
  > The pilot’s premature retraction of the landing gear and the flaps during landing. Contributing to the accident was the inadvertent dimming of the cockpit lighting, resulting in a perceived unsafe gear configuration.
- [NTSB CEN09MA117](https://openairdocs.org/ntsb/CEN09MA117.md): Sikorsky S-76C · Morgan City, LA · Accident · 8 fatal · Major investigation · Final report · Jan 4, 2009 · N748P · Destroyed
  > (1) the sudden loss of power to both engines that resulted from impact with a bird (red-tailed hawk), which fractured the windshield and interfered with engine fuel controls, and (2) the subsequent disorientation of the flight crewmembers, which left them…

## 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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01023150'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01023150/cases

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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.