# NTSB investigations: Lycoming O-360-A4M: Abnormal runway contact

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 ERA26LA074](https://openairdocs.org/ntsb/ERA26LA074.md): Piper PA-28-181 · Fort Lauderdale, FL · Accident · No injuries · Class 4 · Limited · Final report · Dec 16, 2025 · N472A · Substantial damage
  > The student pilot’s improper landing flare and the flight instructor’s inadequate remedial action, which resulted in a hard landing and subsequent nose landing gear collapse.
- [NTSB ERA21LA139](https://openairdocs.org/ntsb/ERA21LA139.md): Piper PA-28-181 · Fort Pierce, FL · Accident · No injuries · Class 4 · Limited · Final report · Feb 22, 2021 · N885AC · Substantial damage
  > The pilot under instruction’s improper landing flare and attempted go-around which resulted in an aerodynamic stall, and subsequent loss of control. Contributing to the accident was the flight instructor’s delayed remedial action.

## 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 ('42276')
    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" = '090'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/090/cases?engine=42276

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