# NTSB investigations: Boeing 727-224: 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 CHI00LA296](https://openairdocs.org/ntsb/CHI00LA296.md): Boeing 727-224 · Minneapolis, MN · Accident · No injuries · Limited investigation · Final report · Sep 10, 2000 · N296SC · Substantial damage
  > The fatigue failure of the wheel assembly. A factor was the inadequate inspection procedures prior to the issuance of a service bulletin.
- [NTSB CHI91IA297](https://openairdocs.org/ntsb/CHI91IA297.md): Boeing 727-224 · Detroit, MI · Incident · No injuries · Incident investigation · Final report · Sep 20, 1991 · N88704 · Minor damage
  > Inadequate maintenance inspection of the main landing gear actuator assembly by company maintenance personnel. A factor in the incident is inadequate design of the landing gear actuator by the manufacturer.
- [NTSB SEA90IA161](https://openairdocs.org/ntsb/SEA90IA161.md): Boeing 727-224 · Belgrade, MT · Incident · No injuries · Incident investigation · Final report · Aug 12, 1990 · N69735 · Minor damage
  > The malfunction of the starter control valve.
- [NTSB LAX89IA315](https://openairdocs.org/ntsb/LAX89IA315.md): Boeing 727-224 · Los Angeles, CA · Incident · No injuries · Incident investigation · Final report · Aug 10, 1989 · N88709 · Minor damage
  > A fatigue crack in the right gear wheel well.
- [NTSB FTW86IA093](https://openairdocs.org/ntsb/FTW86IA093.md): Boeing 727-224 · Corpus Christi, TX · Incident · Minor injuries · Incident investigation · Final report · May 25, 1986 · N88711 · Minor damage
  > The pilot made an intentional gear-up landing (left main only) after numerous attempts to lower it were unsuccessful. The small steel nut which had jammed the left main gear door unlatching mechanism fell into that position sometime after the gear was…

## 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 ('1384076')
    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=1384076&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.