# NTSB investigations: Allison 250 SER 250HP, CA

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 WPR25LA078](https://openairdocs.org/ntsb/WPR25LA078.md): Bell 206A · Lemoore, CA · Accident · No injuries · Class 4 · Limited · Final report · Jan 14, 2025 · N6255N · Destroyed
  > The pilot’s failure to maintain clearance from power lines while maneuvering at a low altitude.
- [NTSB WPR16LA125](https://openairdocs.org/ntsb/WPR16LA125.md): Bell 206 · Bishop, CA · Accident · No injuries · Limited investigation · Final report · Jun 14, 2016 · N1076Y · Substantial damage
  > The pilot’s improper preflight weather planning, fuel planning, and fuel management, which resulted in fuel starvation and a loss of engine power. Contributing to the severity of the accident was the pilot's initiation of the landing flare at a high altitude,…
- [NTSB WPR13FA119](https://openairdocs.org/ntsb/WPR13FA119.md): Bell 206B · Acton, CA · Accident · 3 fatal · Field investigation · Final report · Feb 10, 2013 · N59518 · Substantial damage
  > The pilot's decision to conduct a flight in dark night conditions with an illuminated cockpit light that degraded his visibility and his ability to identify and arrest the helicopter's descent while maneuvering, which resulted in controlled flight into…
- [NTSB WPR12LA426](https://openairdocs.org/ntsb/WPR12LA426.md): Bell 206 - B · Mammoth Lakes, CA · Accident · No injuries · Limited investigation · Final report · Sep 19, 2012 · N222GR · Destroyed
  > The pilot’s inability to maintain sufficient main rotor rpm while maneuvering in high density altitude conditions, which resulted in a precautionary landing and subsequent rollover.
- [NTSB SEA08CA091](https://openairdocs.org/ntsb/SEA08CA091.md): Bell 206B · Oxnard, CA · Accident · No injuries · Data collection · Final report · Mar 11, 2008 · N7028J · Substantial damage
  > The pilot's failure to maintain clearance with terrain during an aerial application.
- [NTSB LAX06LA220](https://openairdocs.org/ntsb/LAX06LA220.md): Bell 206B · Chino Hills, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 2006 · N205LA · Substantial damage
  > A loss of aircraft control for undetermined reasons.
- [NTSB LAX95LA310](https://openairdocs.org/ntsb/LAX95LA310.md): Bell 206BIII · Carmel Valley, CA · Accident · No injuries · Limited investigation · Final report · Aug 28, 1995 · N206MT · Substantial damage
  > the pilot's failure to maintain an adequate clearance from obstructions while hovering.
- [NTSB LAX90FA268](https://openairdocs.org/ntsb/LAX90FA268.md): Bell 206B · Quincy, CA · Accident · No injuries · Field investigation · Final report · Jul 25, 1990 · N2292W · Substantial damage
  > An unidentified contaminate lodged in the fuel governor.
- [NTSB LAX88LA304](https://openairdocs.org/ntsb/LAX88LA304.md): Bell 206L-1 · Barrett Junct., CA · Accident · Serious injuries · Limited investigation · Final report · Aug 31, 1988 · N74WH · Substantial damage
  > While descending into a canyon, the aircraft struck powerlines, went into an uncontrolled descent and collided with the terrain. The pilot stated that he could not see the powerlines and that his visibility was restricted by the sun. All four passengers…
- [NTSB LAX87LA140](https://openairdocs.org/ntsb/LAX87LA140.md): Hughes 269D · Palmdale, CA · Accident · No injuries · Limited investigation · Final report · Mar 10, 1987 · N1103V · Substantial damage
  > During an external load operation, the engine lost power. The aircraft collided with the terrain and rolled over. Inspection of the engine revealed an overtemperature to the first and second stage turbine wheel airfoils.
- [NTSB LAX87LA099](https://openairdocs.org/ntsb/LAX87LA099.md): Hughes 369D · Lemon Cove, CA · Accident · No injuries · Limited investigation · Final report · Jan 18, 1987 · N1107N · Substantial damage
  > The plt rprtd that while at 100 to 150 ft AGL on an apch to land, the eng lost pwr as though it had flamed out. He entered an autorotation, but was unable to reach the helipad. Subsequently, the helicopter landed in trees & was badly dmgd. Drg the…
- [NTSB LAX86LA226](https://openairdocs.org/ntsb/LAX86LA226.md): Bell 206B · Los Angeles, CA · Accident · Minor injuries · Limited investigation · Final report · May 21, 1986 · N1411W · Substantial damage
  > During a x-wind takeoff the downwind skid contacted the landing pad and the helicopter rolled over to the right. One person on the ground was injured by flying debris.
- [NTSB LAX82FA014](https://openairdocs.org/ntsb/LAX82FA014.md): Bell 206B · Napa, CA · Accident · 1 fatal · Closed · Nov 12, 1981 · N49756 · Destroyed
- [NTSB LAX80DVG39](https://openairdocs.org/ntsb/LAX80DVG39.md): Hughes 369D · Yountville, CA · Accident · Minor injuries · Closed · May 16, 1980 · N58430 · Substantial damage
- [NTSB OAK73DVM05](https://openairdocs.org/ntsb/OAK73DVM05.md): Bell 206B · Salinas, CA · Accident · Minor injuries · Closed · Aug 5, 1972 · N6280N · Substantial damage
- [NTSB LAX72FUG63](https://openairdocs.org/ntsb/LAX72FUG63.md): Bell 206A · La Verne, CA · Accident · No injuries · Closed · Mar 29, 1972 · N2239W · Substantial damage
- [NTSB OAK71DVG45](https://openairdocs.org/ntsb/OAK71DVG45.md): Hiller Acft FH1100 · Burney, CA · Accident · No injuries · Closed · Dec 22, 1970 · N434FH · Substantial damage
- [NTSB OAK69D0208](https://openairdocs.org/ntsb/OAK69D0208.md): Hiller Acft FH1100 · Storrie, CA · Accident · Serious injuries · Closed · Dec 18, 1968 · N748FH · Substantial damage
- [NTSB LAX68A0009](https://openairdocs.org/ntsb/LAX68A0009.md): Bell 206A · Carpinteria, CA · Accident · No injuries · Closed · Jul 17, 1967 · N7847S · 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" = 'CA' 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=CA

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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.