# NTSB investigations: Weatherly 620A

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 CEN22LA340](https://openairdocs.org/ntsb/CEN22LA340.md): Weatherly 620A · Stewart, MN · Accident · No injuries · Class 4 · Limited · Final report · Jul 25, 2022 · N4651W · Substantial damage
  > The pilot’s failure to maintain adequate clearance from crops during an agricultural flight.
- [NTSB CEN15LA272](https://openairdocs.org/ntsb/CEN15LA272.md): Weatherly 620A · Van Horn, TX · Accident · Serious injuries · Limited investigation · Final report · Jun 14, 2015 · N4659N · Substantial damage
  > The loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CHI03LA254](https://openairdocs.org/ntsb/CHI03LA254.md): Weatherly 620A · Doland, SD · Accident · No injuries · Limited investigation · Final report · Aug 10, 2003 · N4656M · Substantial damage
  > The pilot's failure to maintain clearance from the wires and directional control not being possible due to the failure of the brake system. Factors contributing to the accident were the wires, the trees, and the failure of the brake system.
- [NTSB CHI03LA134](https://openairdocs.org/ntsb/CHI03LA134.md): Weatherly 620A · Melville, ND · Accident · Minor injuries · Limited investigation · Final report · May 24, 2003 · N4650W · Substantial damage
  > The pilot's failure to maintain clearance from the wires. The low altitude operation and the wires were contributing factors.
- [NTSB ATL92LA154](https://openairdocs.org/ntsb/ATL92LA154.md): Weatherly 620A · Cobb, GA · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 1992 · N4650W · Substantial damage
  > The corroded, and separated, magnetic chip detector plug which allowed the loss of all engine oil and the engine's subsequent seizure. Factors were the inadequate 100 hour inspection, and the high vegetation in the forced landing field.

## 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 ('9630603'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=9630603

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