# NTSB investigations: Piper L-21B: Loss of control - on ground/water

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 CHI99LA146](https://openairdocs.org/ntsb/CHI99LA146.md): Piper PA-18-L21B · Vincennes, IN · Accident · No injuries · Limited investigation · Final report · May 10, 1999 · N3VU · Substantial damage
  > the pilot's failure to maintain directional control after landing. Factors which contributed to this accident were the pilot's long touchdown, the rough area on the runway, and the wheat field.
- [NTSB ATL83LA276](https://openairdocs.org/ntsb/ATL83LA276.md): Piper L-21B · Vernon, AL · Accident · No injuries · Limited investigation · Final report · Jul 4, 1983 · N8056W · Substantial damage
  > The acft departed the rwy & nosed over inverted during an unauthorized flight. After the accident the non-certificated plt told the owner that he had flown the acft several times based on the permission of a friend who was authorized to fly the acft.

## 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 ('7101815')
    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" = 260))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7101815&occurrence=260

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