# NTSB investigations: Allison 250 SER 250HP, FL

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 ERA25LA059](https://openairdocs.org/ntsb/ERA25LA059.md): Bell 206B · Lakeland, FL · Accident · No injuries · Class 4 · Limited · Final report · Nov 21, 2024 · N422RH · Substantial damage
  > The pilot’s failure to maintain yaw control during a tailwind approach, which resulted in a loss of tail rotor effectiveness, an uncommanded spin, and subsequent hard landing.
- [NTSB ERA21LA023](https://openairdocs.org/ntsb/ERA21LA023.md): Bell 206 · Zephyrhills, FL · Accident · No injuries · Class 3 · Limited · Final report · Oct 16, 2020 · N777CP · Substantial damage
  > Improper torquing of the “B” nut at the fuel control unit, which led to a total loss of engine power and subsequent autorotation that resulted in substantial damage.
- [NTSB ERA15LA060](https://openairdocs.org/ntsb/ERA15LA060.md): Bell 206B · West Palm Beach, FL · Accident · No injuries · Limited investigation · Final report · Oct 25, 2014 · N418SV · Substantial damage
  > A hard landing for reasons that could not be determined based on the available evidence.
- [NTSB MIA06LA123](https://openairdocs.org/ntsb/MIA06LA123.md): Bell 206B · Pompano Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 2006 · N515AA · Substantial damage
  > The pilot's improper landing flare during a precautionary landing. A factor in the accident was the unusual noise as a result of an improper repaired air conditioner compressor system.
- [NTSB MIA98LA148](https://openairdocs.org/ntsb/MIA98LA148.md): Bell 206L-1 · Orlando, FL · Accident · No injuries · Limited investigation · Final report · Apr 25, 1998 · N60WJ · Substantial damage
  > failure of the flight crew to maintain main rotor RPM during a landing touchdown, which resulted in the main rotor blades contacting the tailboom.
- [NTSB MIA97FA070](https://openairdocs.org/ntsb/MIA97FA070.md): Bell 206-B3 · Fort Lauderdale, FL · Accident · 4 fatal · Field investigation · Final report · Jan 23, 1997 · N2047R · Destroyed
  > The pilot's incapacitation by carbon monoxide from undetermined sources which led to his diminished ability to see and avoid a radio tower.
- [NTSB MIA88FA257](https://openairdocs.org/ntsb/MIA88FA257.md): Hughes 500 · Riviera Beach, FL · Accident · Serious injuries · Field investigation · Final report · Aug 19, 1988 · N3766Z · Substantial damage
  > The traffic watch helicopter was cruising northbound along the interstate at 450 ft AGL & 85 KTS airspeed. A grinding noise was heard & the tail rotor separated from the acft. The acft began an uncommanded right turn which was arrested in about 1/4 turn. The…
- [NTSB MIA87LA133](https://openairdocs.org/ntsb/MIA87LA133.md): Bell 206L · Miami, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 12, 1987 · N16780 · Substantial damage
  > Unlicensed pilot lost control of helicopter while in hover while attempting to steal the helicopter. The aircraft crashed to earth and rolled over. The pilot was on probation for attempting to steal a helicopter on a previous occasion. The plt received minor…
- [NTSB MIA87LA106](https://openairdocs.org/ntsb/MIA87LA106.md): Hughes 364HS · Opa Locka, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 1987 · N4507C · Substantial damage
  > The pilot of the helicopter was executing a normal approach to the ground when as he neared the ground the ventral fin struck the ground. The tail rotor driveshaft re-centered and the pilot thought the accompanying shudder was a tail rotor failure, and landed…
- [NTSB MIA82FLD09](https://openairdocs.org/ntsb/MIA82FLD09.md): Bell 206B · Orlando, FL · Accident · No injuries · Closed · Dec 7, 1981 · N7021J · Substantial damage
- [NTSB MIA80FA039](https://openairdocs.org/ntsb/MIA80FA039.md): Bell 206B · Kissimmee, FL · Accident · 2 fatal · Closed · Feb 29, 1980 · N5015Y · Destroyed

## 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" = 'FL' 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=FL

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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.