# NTSB investigations: Allison 250 SER 250HP, HI

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 WPR17FA021](https://openairdocs.org/ntsb/WPR17FA021.md): Hughes 369 · Pukoo, HI · Accident · 2 fatal · Field investigation · Final report · Nov 16, 2016 · N81GG · Destroyed
  > The pilot's decision to continue visual flight into an area of instrument meteorological conditions at night in rain, which resulted in his geographic disorientation and controlled flight into terrain.
- [NTSB LAX02LA007](https://openairdocs.org/ntsb/LAX02LA007.md): Hughes 369D · Kahoolawe Isle, HI · Accident · Serious injuries · Limited investigation · Final report · Oct 10, 2001 · N622WA · No damage
  > Inadequate visual surveillance by the pilot before takeoff resulting in liftoff with a deplaning passenger still partially aboard the helicopter. A factor in the accident was the operator's inadequate procedures.
- [NTSB LAX97LA039](https://openairdocs.org/ntsb/LAX97LA039.md): McDonnell Douglas 369D · Hana, HI · Accident · No injuries · Limited investigation · Final report · Nov 13, 1996 · N8625F · Substantial damage
  > subsequent failure of the spur adapter gearshaft (SAG), after 'retaining ring to compressor impeller machining' occurred and allowed the SAG to shift aft. The mechanism which induced the ring to impeller machining was not determined. Mountainous terrain in…
- [NTSB LAX93LA104](https://openairdocs.org/ntsb/LAX93LA104.md): Fairchild Hiller FH-1100 · Volcano Natl Pk, HI · Accident · 4 fatal · Limited investigation · Final report · Jan 25, 1993 · N427FH · Destroyed
  > A loss of tail rotor control for an undetermined reason(s). A factor which contributed to the accident was the pilot's choice of a hover altitude/position inadequate to reach a shoreline in the event of an emergency. A factor which contributed to the severity…
- [NTSB LAX90FA230](https://openairdocs.org/ntsb/LAX90FA230.md): Hughes 369D · Hanapepe, HI · Accident · No injuries · Field investigation · Final report · Jun 23, 1990 · N8605F · 2 aircraft · Substantial damage
  > Failure of pilot of the photographing helicopter to maintain clearance and avoid collision.
- [NTSB LAX88LA325](https://openairdocs.org/ntsb/LAX88LA325.md): Bell 206L · Lihue, HI · Accident · No injuries · Limited investigation · Final report · Sep 17, 1988 · N278KA · Substantial damage
  > During a local sightseeing flight, the pilot reported that while on final approach for landing, the audio and light for low RPM sounded and illuminated. The helicopter was autorotated. It initially bounced when it touched down, then landed hard. The engine…
- [NTSB LAX86FJA06](https://openairdocs.org/ntsb/LAX86FJA06.md): Bell 206B · Maui, HI · Accident · 2 fatal · Final report · May 18, 1986 · N244WC · Destroyed
  > The acft collided with powerlines while carrying pass'g on a sightseeing flt through a canyon. The wires across the canyon were EST to be 1700 long with height AGL unknown. The wires were unmarked and were 1/2 in dia aluminum. One of the passengers was…
- [NTSB LAX81FA131](https://openairdocs.org/ntsb/LAX81FA131.md): Bell 206L-1 · Waialae Falls, HI · Accident · No injuries · Closed · Sep 22, 1981 · N1075S · Substantial damage
- [NTSB OAK71FJA14](https://openairdocs.org/ntsb/OAK71FJA14.md): Hughes 500 · Kaneohe, HI · Accident · No injuries · Closed · Mar 3, 1971 · N9016F · Substantial damage
- [NTSB OAK69D0171](https://openairdocs.org/ntsb/OAK69D0171.md): Bell 206A · Hanapepe, HI · Accident · No injuries · Closed · Nov 2, 1968 · N6255N · Substantial damage

## 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" = 'HI' 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 ('03002', '03003'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03002&state=HI

---
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.