# NTSB investigations: Lycoming 0-540 series, MN: In flight collision with object

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 CHI95LA245](https://openairdocs.org/ntsb/CHI95LA245.md): Piper PA-25-235 · Oklee, MN · Accident · No injuries · Limited investigation · Final report · Jul 28, 1995 · N7797Z · Destroyed
  > the pilot failed to maintain clearance with trees. Factors associated with the accident were the trees and the pilot's diverted attention.
- [NTSB MKC90LA135](https://openairdocs.org/ntsb/MKC90LA135.md): Callair A-9 · Barrett, MN · Accident · No injuries · Limited investigation · Final report · Jun 22, 1990 · N9621Z · Substantial damage
  > Inadequate visual outlook and a delayed pull-up by the pilot in command.
- [NTSB CHI88DER04](https://openairdocs.org/ntsb/CHI88DER04.md): Piper PA-25 · Elbow Lake, MN · Accident · No injuries · Final report · Jul 24, 1988 · N6590Z · Substantial damage
  > The pilot was practicing low level flight in preparation for his certification under 14 CFR 137 when the aircraft experienced a collision with wires. The aircraft was substantially damaged during this collision and the subsequent collision with trees and the…
- [NTSB CHI83LA243](https://openairdocs.org/ntsb/CHI83LA243.md): Piper PA-25 · Roseau, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 1983 · N7221L · Substantial damage
  > During an aerial application flt, the acft collided with power lines during a pull-up from a swath run. The plt reported no preimpact malfunctions.

## 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."eventStateOrRegion" = 'MN' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41532')
    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" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41532&occurrence=220&state=MN

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