# NTSB investigations: Pratt & Whitney Canada PW120: 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 SEA01IA161](https://openairdocs.org/ntsb/SEA01IA161.md): de Havilland DHC-8-102 · Portland, OR · Incident · No injuries · Incident investigation · Final report · Aug 28, 2001 · N827PH · No damage
  > Improper tension of the right control yoke chain; a worn right aileron spring tab hinge bearing; improper tension of the left aileron spring tab aft spring and worn contact stud; improper tension of the right aileron spring tab and a worn contact stud; a worn…
- [NTSB SEA01FA059](https://openairdocs.org/ntsb/SEA01FA059.md): de Havilland DHC-8-102 · Portland, OR · Accident · No injuries · Field investigation · Final report · Mar 6, 2001 · N822PH · Substantial damage
  > The failure of the number 5 engine bearing assembly followed by the disconnection of the P2.5/P3 switching valve to rear inlet case sealing air tube and the melting of the NL probe port (sealing tube) which allowed an oil fed fire beyond the constraints of…
- [NTSB CHI00IA221](https://openairdocs.org/ntsb/CHI00IA221.md): Aerospatiale ATR 42-300 · Champaign, IL · Incident · No injuries · Incident investigation · Final report · Jul 23, 2000 · N421TE · No damage
  > The failure of the aileron trim switch due to foreign material contamination.
- [NTSB IAD00IA026](https://openairdocs.org/ntsb/IAD00IA026.md): Boeing - Canada DHC-8-102 · Baltimore, MD · Incident · No injuries · Incident investigation · Final report · Mar 12, 2000 · N838EX · Minor damage
  > the missing elevator stop bumper that resulted in elevator over-travel and damage to the elevator. A factor in the incident was the abrupt release of the elevator control lock in windy conditions.
- [NTSB ATL91IA134](https://openairdocs.org/ntsb/ATL91IA134.md): de Havilland DHC-8-102 · Savannah, GA · Incident · No injuries · Incident investigation · Final report · Jul 17, 1991 · N922HA · Minor damage
  > The inadequate inspection procedures which allowed the loss of torque on the top retraction fitting attachment bolt which subsequently failed in fatigue. Factors were the loss of hydraulic fluid through a severed line, and the corrosion of a hydraulic…

## 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.engine_model_code IN ('52114')
    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?engine=52114&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.