# NTSB investigations: U/A Canada PT6A series: 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 NYC05IA029](https://openairdocs.org/ntsb/NYC05IA029.md): Fairchild-Heliporter Pilatus PC6/B2-H2 · Cross Keys, NJ · Incident · No injuries · Incident investigation · Final report · Dec 4, 2004 · N7391U · Minor damage
  > A total failure of the left elevator attachment point for undetermined reasons.
- [NTSB LAX92FA149](https://openairdocs.org/ntsb/LAX92FA149.md): Ayres S2R-T34 · Bakersfield, CA · Accident · Serious injuries · Field investigation · Final report · Mar 23, 1992 · N59SK · Destroyed
  > A catastrophic wing spar failure precipitated by hidden corrosion and the restricted view of the area of corrosion by the airplane's wing structure.
- [NTSB FTW91FA029](https://openairdocs.org/ntsb/FTW91FA029.md): Beech F-90 · Nacogdoches, TX · Accident · Serious injuries · Field investigation · Final report · Jan 11, 1991 · N311DS · Destroyed
  > The loss of thrust due to the propeller's feathering on liftoff as a result of improper adjustments made during an engine change. A factor was the lack of suitable terrain to which the pilot could execute a forced landing.

## 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 ('61508')
    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=61508&occurrence=130

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