# NTSB investigations, 2023: 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 DCA24WA052](https://openairdocs.org/ntsb/DCA24WA052.md): Boeing 737 · Billund, Denmark · Incident · Class 5 · Foreign · Dec 21, 2023 · OY-JZN · No damage
- [NTSB DCA24WA045](https://openairdocs.org/ntsb/DCA24WA045.md): Boeing 737 · Quito, Ecuador · Incident · Class 5 · Foreign · Dec 19, 2023 · HK-5434 · No damage
- [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 WPR23LA317](https://openairdocs.org/ntsb/WPR23LA317.md): Piper PA-24-260 · Fullerton, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 8, 2023 · N503JA · Substantial damage
  > The separation of the stabilator actuator from the stabilator tab, which resulted in pitch control surface flutter and structural damage.
- [NTSB ERA23LA319](https://openairdocs.org/ntsb/ERA23LA319.md): Bell Helicopter Textron Canada 407 · North Charleston, SC · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 1, 2023 · N31PB · Substantial damage
  > A failure of the tail rotor pitch change lever assembly due to incorrectly installed bolts and maintenance personnel’s inadequate inspection of the tail rotor control system.
- [NTSB ENG23WA043](https://openairdocs.org/ntsb/ENG23WA043.md): ATR ATR72 · Brazzavillec, Congo - Kinshasa · Incident · No injuries · Class 5 · Foreign · Jul 29, 2023 · TN-AKA · No damage
- [NTSB ERA23LA253](https://openairdocs.org/ntsb/ERA23LA253.md): Beech V35A · Statesboro, GA · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 1, 2023 · N8074R · Substantial damage
  > Maintenance personnel’s improper installation of the pitch servo bridle cable clamp, which led to binding in the elevator control system that restricted aft yoke movement during the landing approach.
- [NTSB ERA23FA247](https://openairdocs.org/ntsb/ERA23FA247.md): Cessna 172 · Lake Worth, FL · Accident · 2 fatal · Class 3 · Field · Final report · May 26, 2023 · N3KV · Destroyed
  > Maintenance personnel’s failure to detect the corroded aileron cable during recent inspections, which resulted in the separation of the aileron control cable and a subsequent loss of airplane control during takeoff.
- [NTSB ERA23LA245](https://openairdocs.org/ntsb/ERA23LA245.md): Piper PA-25-260 · Hollywood, FL · Accident · Serious injuries · Class 3 · Limited · Final report · May 25, 2023 · N454AB · Substantial damage
  > The pilot’s improper banner pickup approach, which resulted in the banner tow hook contacting the airplane, and the subsequent overload separation of the right rudder control horn, resulting in a loss of airplane control.
- [NTSB CEN23LA172](https://openairdocs.org/ntsb/CEN23LA172.md): Piper PA-34-200 · Coldspring, TX · Accident · Serious injuries · Class 3 · Limited · Final report · May 3, 2023 · N28HE · Substantial damage
  > The stabilator trim rod assembly separated from the stabilator link assembly due to a missing connecting bolt, which resulted in the pilot’s inability to maintain pitch control of the airplane.
- [NTSB CEN23LA170](https://openairdocs.org/ntsb/CEN23LA170.md): Luscombe 8F · Palmer, TX · Accident · No injuries · Class 3 · Limited · Final report · Apr 30, 2023 · N1113B · Substantial damage
  > The installation of an unapproved rudder control cable, which resulted in a fatigue failure and subsequent loss of rudder control during cruise flight. Contributing to the accident was the mechanic’s inadequate inspection of the rudder control system.
- [NTSB DCA23WA242](https://openairdocs.org/ntsb/DCA23WA242.md): Boeing 777 · Frankfurt, Germany · Incident · No injuries · Class 5 · Foreign · Apr 5, 2023 · D-ALFJ · No damage
- [NTSB ERA23LA132](https://openairdocs.org/ntsb/ERA23LA132.md): Stilp Tanner E Savannah S · Trenton, SC · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 28, 2023 · N945HS · Substantial damage
  > The loss of control during the base turn to final due to the impingement of the Y-stick control by a notepad.
- [NTSB DCA23WA189](https://openairdocs.org/ntsb/DCA23WA189.md): Boeing 737 · Budapest, Hungary · Occurrence · Class 5 · Foreign · Feb 27, 2023 · OE-IWD · No damage

## 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 year(c."eventDate") = 2023
  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?year=2023

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