# NTSB investigations, LA: 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 CEN23LA199](https://openairdocs.org/ntsb/CEN23LA199.md): Bell Helicopter Textron Canada 407 · Abbeville, LA · Accident · No injuries · Class 4 · Limited · Final report · May 23, 2023 · N451PH · Substantial damage
  > The pilot’s failure to maintain proper helicopter control during autorotation that resulted in an abnormal ground contact which caused the subsequent main rotor strike on the tail boom that severed the tail rotor driveshaft. Contributing to the accident was…
- [NTSB GAA19CA115](https://openairdocs.org/ntsb/GAA19CA115.md): Navion Navion · Patterson, LA · Accident · No injuries · Data collection · Final report · Jan 20, 2019 · N384TL · Substantial damage
  > The pilot's failure to maintain clearance from power lines while making an evasive maneuver to avoid birds.
- [NTSB CEN17LA174](https://openairdocs.org/ntsb/CEN17LA174.md): Bell 407 · Venice, LA · Accident · No injuries · Limited investigation · Final report · May 2, 2017 · N457PH · Substantial damage
  > An in-flight separation of the tip block from the tail rotor blade due to an inadequate blade repair, which resulted in a rotor imbalance sufficient to crack the gearbox attachment studs and gearbox support assembly, and inadequate postrepair test procedures,…
- [NTSB CEN16LA401](https://openairdocs.org/ntsb/CEN16LA401.md): Agustawestland Philadelphia AW139 · Galliano, LA · Accident · No injuries · Limited investigation · Final report · Apr 7, 2016 · N639NA · Substantial damage
  > The fatigue failure of a tail rotor blade erosion shield extension, which resulted in in-flight damage to a main rotor blade.
- [NTSB GAA16CA039](https://openairdocs.org/ntsb/GAA16CA039.md): Bell 407 · Cameron, LA · Accident · No injuries · Data collection · Final report · Oct 30, 2015 · N420PH · Substantial damage
  > The pilot's failure to remove a main rotor blade tiedown, which resulted in substantial damage to a main rotor blade when the engine was started.
- [NTSB CEN14LA508](https://openairdocs.org/ntsb/CEN14LA508.md): Brupbacher Chris CB2000 · Reserve, LA · Accident · 2 fatal · Limited investigation · Final report · Sep 21, 2014 · N5002E · Destroyed
  > The failure of the flight control rod bearing due to an undetected preexisting corrosion-induced crack, which resulted in the main rotor blades going to full pitch and the rotor mast folding; this allowed the pusher propeller to strike and sever the tail.
- [NTSB CEN13LA321](https://openairdocs.org/ntsb/CEN13LA321.md): Bell 206-L4 · Abbeville, LA · Accident · No injuries · Limited investigation · Final report · Jun 6, 2013 · N720RL · Substantial damage
  > Failure of maintenance personnel to ensure adequate torque of a tailrotor drive shaft coupling bolt, which resulted in the partial disconnection of the drive shaft.
- [NTSB CEN12FA250](https://openairdocs.org/ntsb/CEN12FA250.md): Sikorsky S-76B · Gulf of Mexico, LA · Accident · No injuries · Field investigation · Final report · Apr 17, 2012 · N56RD · Substantial damage
  > The intermittent loss of engine power due to a "stuck" stepper motor in the No. 2 engine's fuel control as a result of an inadequate overhaul. Contributing to the accident was the pilot's decision to continue flying the helicopter with a known defect, his…
- [NTSB CEN11LA283](https://openairdocs.org/ntsb/CEN11LA283.md): Robinson R22 · Lake Charles, LA · Accident · Minor injuries · Limited investigation · Final report · Apr 10, 2011 · N372LE · Substantial damage
  > The pilot's loss of control of the helicopter while in a hover.
- [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.

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '338' 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/338/sequence?state=LA

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