# NTSB investigations: Mooney M20D: 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 LAX91LA135](https://openairdocs.org/ntsb/LAX91LA135.md): Mooney M20D · Herlong, CA · Accident · No injuries · Limited investigation · Final report · Mar 18, 1991 · N1921Y · Substantial damage
  > The inadequate preparation of the propeller during overhaul. The installation of an improper pitched propeller and the fatigue failure of the propeller blade emanating from corrosion were factors in the accident.
- [NTSB FTW87LA024](https://openairdocs.org/ntsb/FTW87LA024.md): Mooney M20D · Kerrville, TX · Accident · Serious injuries · Limited investigation · Final report · Dec 2, 1986 · N1970Y · Substantial damage
  > The pilot was unable to extend the landing gear in preparation for landing. Troubleshooting and several attempts to extend the gear failed. The pilot then made a 360 degree turn over the airport to lose altitude during which, he secured the engine and stopped…

## 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 ('5870210')
    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=5870210&occurrence=130

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