# NTSB investigations: Piper PA-44-180: Gear collapsed

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 ATL04CA192](https://openairdocs.org/ntsb/ATL04CA192.md): Piper PA-44-180 · Miami, FL · Accident · No injuries · Data collection · Final report · Sep 10, 2004 · N268DA · Substantial damage
  > The pilot's failure to follow the after landing check list, which resulted in his inadvertent gear retraction during landing roll.
- [NTSB ATL01LA058](https://openairdocs.org/ntsb/ATL01LA058.md): Piper PA-44-180 · Brooksville, FL · Accident · No injuries · Limited investigation · Final report · May 20, 2001 · N3042C · Substantial damage
  > The fatigue failure of the left main landing gear strut that resulted in collapse of the landing gear.
- [NTSB CHI94LA087](https://openairdocs.org/ntsb/CHI94LA087.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Feb 13, 1994 · N190ND · Substantial damage
  > the improper maintenance installation (cotter pin) by other maintenance personnel. Factors were main landing gear scissors not safetied properly and extension of landing gear not possible by pilot-in-command (CFI).

## 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 ('7104402', '7104406')
    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" = 190))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7104402&occurrence=190

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