# NTSB investigations: Piper PA-23: Loss of visual reference

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 CEN19LA051](https://openairdocs.org/ntsb/CEN19LA051.md): Piper PA 23 · Beaver Island, MI · Accident · 1 fatal · Limited investigation · Final report · Dec 31, 2018 · N2146P · Destroyed
  > The pilot's failure to maintain a positive rate of climb after takeoff which resulted in an impact with trees and terrain. Contributing to the accident was the pilot's inability to see a visible horizon due to the dark night lighting conditions and limited…
- [NTSB CEN11FA557](https://openairdocs.org/ntsb/CEN11FA557.md): Piper PA-23 · Millersburg, OH · Accident · 3 fatal · Field investigation · Final report · Aug 8, 2011 · N2286P · Substantial damage
  > The pilot’s failure to maintain clearance with terrain during the landing approach in night conditions and fog. Contributing to the accident was the pilot’s inadequate preflight planning.

## 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 ('7102302')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '402' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/402/sequence?model=7102302

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