# NTSB investigations: AiResearch TPE331 series: Low altitude operation/event

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 CEN24LA318](https://openairdocs.org/ntsb/CEN24LA318.md): Ayres S2R · Stanwood, MI · Accident · No injuries · Class 3 · Limited · Final report · Jun 20, 2024 · N4004K · Substantial damage
  > The pilot’s failure to maintain terrain clearance during a low-level aerial application flight, which resulted in impact with terrain and a subsequent forced landing. Contributing to the accident was the location of the spray boom pressure gauge, which…
- [NTSB WPR10CA439](https://openairdocs.org/ntsb/WPR10CA439.md): Ayres S2R-G10 · Ligurta, AZ · Accident · Serious injuries · Data collection · Final report · Aug 31, 2010 · N6125X · Substantial damage
  > The pilot's failure to maintain clearance from rising terrain. Contributing to the accident was the pilot's decision to orient the application tracks so that they did not provide the maximum possible clearance from the rising terrain, and, the predawn…
- [NTSB WPR09CA358](https://openairdocs.org/ntsb/WPR09CA358.md): Wsk-Pzl Meilec PZL M18B · Rockland, ID · Accident · Minor injuries · Data collection · Final report · Jul 20, 2009 · N7813T · Substantial damage
  > The pilot's failure to maintain clearance from the terrain during an aerial application reversal turn.
- [NTSB ERA09CA298](https://openairdocs.org/ntsb/ERA09CA298.md): Ayres S2R-G1 · Bald Eagle, PA · Accident · Serious injuries · Data collection · Final report · May 21, 2009 · N6134T · Substantial damage
  > The pilot's failure to maintain clearance from a power line.

## 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.engine_model_code IN ('01514', '01517')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '220'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/220/cases?engine=01514

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.