# NTSB investigations: Alon A2: Loss of control on ground

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 CEN25LA264](https://openairdocs.org/ntsb/CEN25LA264.md): Alon A2 · Pipestone, MN · Accident · No injuries · Class 4 · Limited · Final report · Jul 20, 2025 · N6557Q · Substantial damage
  > The failure of the left brake to release due to corrosion and pitting of the caliper piston and bore, which resulted in a runway excursion.
- [NTSB ERA21LA358](https://openairdocs.org/ntsb/ERA21LA358.md): Alon A2 · Abingdon, VA · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 13, 2021 · N5644F · Substantial damage
  > The failure of a nosewheel steering actuator arm, which resulted in a loss of control during the landing rollout.
- [NTSB WPR12CA330](https://openairdocs.org/ntsb/WPR12CA330.md): Alon A2 · Compton, CA · Accident · No injuries · Data collection · Final report · Jul 28, 2012 · N5486E · Substantial damage
  > The pilot's failure to maintain directional control during landing.
- [NTSB WPR12CA095](https://openairdocs.org/ntsb/WPR12CA095.md): Alon A2 · Forks, WA · Accident · No injuries · Data collection · Final report · Feb 4, 2012 · N5687F · Substantial damage
  > The pilot's incorrect placement of the throttle prior to starting the airplane by hand. Contributing to the accident was that the pilot did not ensure that the airplane was restrained in a manner that would keep it from moving forward.

## 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 ('0540102')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '230' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/230/sequence?model=0540102

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