# NTSB investigations, 2004: Rotor failure/malfunction

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 SEA05FA019](https://openairdocs.org/ntsb/SEA05FA019.md): Robinson R22 Beta · Arlington, WA · Accident · 2 fatal · Field investigation · Final report · Nov 27, 2004 · N4029Q · Destroyed
  > The divergence of the main rotor from its normal plane of rotation for an undetermined reason, resulting in rotor contact with the aircraft's left windscreen. The failure of the door pins to be installed was a factor.
- [NTSB FTW04IA217](https://openairdocs.org/ntsb/FTW04IA217.md): Bell 412 · South Pass 65 · Incident · No injuries · Incident investigation · Final report · Aug 19, 2004 · N22347 · Minor damage
  > The failure and separation of the tail rotor gearbox for undetermined reasons.
- [NTSB IAD04LA013](https://openairdocs.org/ntsb/IAD04LA013.md): Schweizer 269C · Media, PA · Accident · No injuries · Limited investigation · Final report · Feb 28, 2004 · N75070 · Substantial damage
  > A lack of previous lubrication to the tail rotor drive shaft forward fitting teeth, which resulted in their gradual wear, the eventual slippage of the shaft, and the subsequent loss of tailrotor thrust and forced landing.
- [NTSB SEA04LA043](https://openairdocs.org/ntsb/SEA04LA043.md): Garlick UH-1H · Liberty, WA · Accident · Serious injuries · Limited investigation · Final report · Feb 23, 2004 · N6257P · Substantial damage
  > The failure of the tail rotor slider lugs due to fatigue while the helicopter was maneuvering.

## 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") = 2004
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 132)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=132&year=2004

---
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.