# NTSB investigations: Allison 250 SER 400HP, 1998

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 ANC98TA125](https://openairdocs.org/ntsb/ANC98TA125.md): Bell 206B II · Chickaloon, AK · Accident · No injuries · Final report · Aug 15, 1998 · N70711 · Substantial damage
  > A fracture of the main rotor drag pin assembly.
- [NTSB LAX98LA139](https://openairdocs.org/ntsb/LAX98LA139.md): Bell 206B · Grand Canyon, AZ · Accident · No injuries · Limited investigation · Final report · Apr 20, 1998 · N8533F · Substantial damage
  > The malfunction and erratic speed control of the engine's governor, and the flight instructor's delayed remedial action.
- [NTSB FTW98LA187](https://openairdocs.org/ntsb/FTW98LA187.md): Bell 206B · Cameron, LA · Accident · No injuries · Limited investigation · Final report · Apr 17, 1998 · N59604 · Substantial damage
  > The loss of engine power for undetermined reasons and the pilot's improper flare which resulted in a hard landing.
- [NTSB MIA98LA070](https://openairdocs.org/ntsb/MIA98LA070.md): Bell 206B · Miami, FL · Accident · No injuries · Limited investigation · Final report · Feb 3, 1998 · N26EA · Substantial damage
  > The pilot's improper use of flight controls (cyclic) while attempting a takeoff to a hover, which led to an on-ground loss of control (dynamic rollover).

## 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 year(c."eventDate") = 1998
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03013', '03012'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03013&year=1998

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