# NTSB investigations: Allison 250-C20 series, 1986

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 LAX87DUM01](https://openairdocs.org/ntsb/LAX87DUM01.md): Bell UH-1B · Calipatria, CA · Accident · No injuries · Final report · Dec 1, 1986 · N2770N · Substantial damage
  > During the initial climb at the beginning of an aerial application flight, the pilot made a climbing 180 degree right turn in the reverse direction when the rotor RPM began to drop. The pilot continued to raise collective, lost directional control and…
- [NTSB NYC87LA030](https://openairdocs.org/ntsb/NYC87LA030.md): Bell 206B · Staten Island, NY · Accident · Serious injuries · Limited investigation · Final report · Nov 6, 1986 · N83086 · Substantial damage
  > The on-demand cargo flight encountered a bird strike enroute from new jersey to jamaica, new york. The pilot received serious injury to the eye and checkbone but was able to accomplish an emergency landing in a parking lot without further damage or injury.
- [NTSB LAX86MA311](https://openairdocs.org/ntsb/LAX86MA311.md): Bell 206B · Alamo, CA · Accident · 2 fatal · Major investigation · Final report · Aug 3, 1986 · N49606 · Destroyed
  > Witnesses reported seeing the helicopter circle twice over a residence at an alt of aprx 50' AGL. Upon initiating the third turn the helicopter entered an abrupt 90 deg bank and nosed down to impact with the terrain. Exam of the helicopter failed to reveal…
- [NTSB LAX86LA155](https://openairdocs.org/ntsb/LAX86LA155.md): Bell 206B · Huntington Bch, CA · Accident · No injuries · Limited investigation · Final report · Mar 23, 1986 · N49643 · Substantial damage
  > A Bell 206B collided with a berm after an eng failure while departing a helipad. The plt indicated he had just departed the helipad at night and at aprx 50 ft AGL the eng failed. The acft vertical fin hit the berm causing the tail boom to bend aft of the…
- [NTSB LAX86FA106](https://openairdocs.org/ntsb/LAX86FA106.md): Bell 206B · Young, AZ · Accident · 1 fatal · Field investigation · Final report · Feb 3, 1986 · N3193T · Destroyed
  > The plt & his daughter planned to fly to their ranch for the purpose of hiring a manager. Upon arriving at their destination ground fog prevailed. The plt, familiar with the area, attempted to find an area where he could descend below the fog. The fog was at…
- [NTSB LAX86LA091](https://openairdocs.org/ntsb/LAX86LA091.md): Bell 206B-3 · Waimea, HI · Accident · Minor injuries · Limited investigation · Final report · Jan 16, 1986 · N3179X · Substantial damage
  > While on a local flt, the plt descended to aprx 500 ft AGL and flew the helicopter along a coastal area. He reported the helicopter suddenly lost power and he initiated an autorotative landing to the beach where the helicopter 'had a hard landing.' An exam…

## 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") = 1986
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('03020'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=03020&year=1986

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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.