# Final NTSB investigations: Allison 250-B17 series

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 CEN12LA296](https://openairdocs.org/ntsb/CEN12LA296.md): Maule M-7-420AC · Hanover Township, MI · Accident · Minor injuries · Limited investigation · Final report · May 13, 2012 · N420RP · Substantial damage
  > A total loss of engine power for reasons that could not be determined during an exhaustive postaccident examination of the engine and its components.
- [NTSB WPR12CA121](https://openairdocs.org/ntsb/WPR12CA121.md): Siai-Marchetti SF.260TP · Corona, CA · Accident · No injuries · Data collection · Final report · Mar 2, 2012 · N350TP · Substantial damage
  > The pilot did not maintain runway alignment during landing in a gusting crosswind.
- [NTSB ATL98GA127](https://openairdocs.org/ntsb/ATL98GA127.md): Government Aircraft Fact N22S · Caribbean Sea · Accident · 1 fatal · Final report · Sep 18, 1998 · N6305U · 2 aircraft · Destroyed
  > The failure of the pilot-in-command of the other aircraft (N6305U) to maintain physical clearance from N6302W. Contributing factors were the inadequate visual lookout of all four pilots involved.
- [NTSB ATL89MA070](https://openairdocs.org/ntsb/ATL89MA070.md): Swearingen SX-300 · Wilmington, OH · Accident · 2 fatal · Major investigation · Final report · Jan 9, 1989 · N6Y · Destroyed
  > Fatigue and resulting failure of the right wing's lower attachment fitting and inadequate quality control by the Swearingen SX-300 production/design personnel.
- [NTSB LAX87LA322](https://openairdocs.org/ntsb/LAX87LA322.md): Government Aircraft Fact Nomad 24A · Lanai, HI · Accident · No injuries · Limited investigation · Final report · Sep 2, 1987 · N37808 · Substantial damage
  > When the flt was aprx 15 mi west of Lanai on a cargo flt from honolulu to hilo, HI, the plt observed the fuel gauges oscillating erratically toward the low side. He diverted toward Lanai to refuel. However, when the flt was abt 9 mi westof Lanai, the left eng…

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03017', '03018'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03017&status=final

---
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.