# NTSB investigations: Boeing 737-3H4: Airframe/component/system 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 LAX96IA184](https://openairdocs.org/ntsb/LAX96IA184.md): Boeing 737-300-3H4 · Ontario, CA · Incident · No injuries · Incident investigation · Final report · Apr 30, 1996 · N331SW · Minor damage
  > The repair facility's improper assembly of the landing gear oleo strut during overhaul.
- [NTSB FTW95IA348](https://openairdocs.org/ntsb/FTW95IA348.md): Boeing 737-3H4 · Lubbock, TX · Incident · No injuries · Incident investigation · Final report · Aug 18, 1995 · N309SW · Minor damage
  > installation of an incorrect bearing in the number three main wheel by the wheel assembly supplier, which led to subsequent failure of the wheel bearing and separation of the wheel during takeoff.
- [NTSB CHI93IA354](https://openairdocs.org/ntsb/CHI93IA354.md): Boeing 737-300 · St. Louis, MO · Incident · No injuries · Incident investigation · Final report · Sep 8, 1993 · N350SW · Minor damage
  > a failure of the left outboard foreflap due to the loss of the bolts that hold the inboard sequencing carriage to the foreflap attach lug.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('138447K')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=138447K&occurrence=130

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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.