# NTSB investigations, LA: 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 CEN22LA202](https://openairdocs.org/ntsb/CEN22LA202.md): Cessna 421C · Monroe, LA · Accident · No injuries · Class 3 · Limited · Final report · May 15, 2022 · N619AC · Substantial damage
  > The failure of the maintenance personnel to properly reinstall the elevator trim tab hardware, which resulted in an in-flight separation of the elevator.
- [NTSB WPR19LA112](https://openairdocs.org/ntsb/WPR19LA112.md): Air Tractor AT502 · Morganza, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 16, 2019 · N599LA · Substantial damage
  > A loss of aircraft control due to the separation of the elevator pushrod attachment bolt.
- [NTSB CEN15LA265](https://openairdocs.org/ntsb/CEN15LA265.md): Bell 407 · Pecan Island, LA · Accident · No injuries · Limited investigation · Final report · Jun 8, 2015 · N501PH · Substantial damage
  > The fatigue fracture of the tail rotor gearbox attachment studs, which resulted in a loss of tail rotor control and a subsequent hard landing.
- [NTSB CEN15IA085](https://openairdocs.org/ntsb/CEN15IA085.md): Dassault/Sud FAN JET Falcon · Shreveport, LA · Incident · No injuries · Incident investigation · Final report · Dec 12, 2014 · N827AA · No damage
  > A short in the trim system’s wires and connector, which resulted in the elevator trim being in a full nose-down position.
- [NTSB CEN13LA225](https://openairdocs.org/ntsb/CEN13LA225.md): Atkins ACRO-SPORT I · Midland, LA · Accident · Minor injuries · Limited investigation · Final report · Apr 12, 2013 · N5897 · Substantial damage
  > The failure of the left elevator torque tube due to poor quality welds by the manufacturer, which resulted in the loss of pitch control.
- [NTSB CEN11IA286](https://openairdocs.org/ntsb/CEN11IA286.md): Cessna 560XL · Abbeville, LA · Incident · No injuries · Incident investigation · Final report · Apr 8, 2011 · N547CS · No damage
  > The pitch trim control cable failed due to fatigue, rendering the elevator trim inoperative.
- [NTSB CEN11IA156](https://openairdocs.org/ntsb/CEN11IA156.md): Sikorsky 92 · Galliano, LA · Incident · No injuries · Incident investigation · Final report · Jan 19, 2011 · N920AL · Minor damage
  > The misalignment of the retaining washer during routine maintenance, resulting in the subsequent separation of the washer and nut.
- [NTSB ENG10IA045](https://openairdocs.org/ntsb/ENG10IA045.md): Bell 430 · Venice, LA · Incident · No injuries · Incident investigation · Final report · Aug 4, 2010 · N430CM · Minor damage
  > The fracture of the collective servo actuator piston rod resulting from stress corrosion cracking.
- [NTSB CEN09LA571](https://openairdocs.org/ntsb/CEN09LA571.md): Messerschmitt-Boelkow-Blohm BO-105S · Thibodaux, LA · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 2009 · N131EH · Substantial damage
  > The pilot's inability to maintain control due to the mechanic's inadvertent switching of two cyclic control tubes of different lengths during maintenance.
- [NTSB CEN09LA198](https://openairdocs.org/ntsb/CEN09LA198.md): Bell 206 · Galliano, LA · Accident · No injuries · Limited investigation · Final report · Mar 2, 2009 · N410RL · Substantial damage
  > The failure of the tail rotor driveshaft and coupling during engine start due to the mechanic's failure to properly reattach the tail rotor driveshaft and coupling during maintenance.

## 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" = 'LA' 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" = '333')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/333/cases?state=LA

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