# NTSB investigations: Rolls-Royce 250-C47B, 2012

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 WPR13TA081](https://openairdocs.org/ntsb/WPR13TA081.md): Bell Helicopter Textron Canada 407 · Renton, WA · Accident · No injuries · Final report · Dec 28, 2012 · N407KS · Substantial damage
  > The pilot's failure to maintain helicopter control during takeoff from an unstable landing platform. Contributing to the accident was the operator's inadequate chocking procedures for the wheeled landing platform, which included chocking only two of the…
- [NTSB CEN13CA114](https://openairdocs.org/ntsb/CEN13CA114.md): Bell 407 · McAllen, TX · Accident · No injuries · Data collection · Final report · Dec 25, 2012 · N489AE · Substantial damage
  > The pilot’s failure to maintain clearance with a parked helicopter during takeoff.
- [NTSB WPR13IA059](https://openairdocs.org/ntsb/WPR13IA059.md): Bell 407 · Riverton, WY · Incident · No injuries · Incident investigation · Final report · Nov 15, 2012 · N7160V · Minor damage
  > The pilot’s failure to maintain sufficient altitude to clear power lines while maneuvering at low altitude. Contributing to the accident was the pilot’s failure to follow company operating specifications for minimum altitude.
- [NTSB ERA13FA014](https://openairdocs.org/ntsb/ERA13FA014.md): Bell 407 · Coolbaugh Township, PA · Accident · 2 fatal · Field investigation · Final report · Oct 10, 2012 · N108MF · Substantial damage
  > The pilot’s decision to continue visual flight rules flight into instrument meteorological conditions due to self-imposed pressure to complete the trip, which resulted in impact with trees and terrain.
- [NTSB CEN12IA518](https://openairdocs.org/ntsb/CEN12IA518.md): Bell 407 · San Antonio, TX · Incident · No injuries · Incident investigation · Final report · Aug 5, 2012 · N429PH · Minor damage
  > The pilot’s failure to maintain clearance from a tower guy wire during the approach to a helipad at night.
- [NTSB ERA12TA251](https://openairdocs.org/ntsb/ERA12TA251.md): Bell 407 · Delray Beach, FL · Accident · Minor injuries · Final report · Mar 23, 2012 · N31PB · Substantial damage
  > The pilot’s improper response to a simulated engine failure and the instructor’s delayed and improper remedial action.
- [NTSB WPR12GA106](https://openairdocs.org/ntsb/WPR12GA106.md): Bell 407 · Moran Junction, WY · Accident · 1 fatal · Final report · Feb 15, 2012 · N407HL · Substantial damage
  > The pilot’s failure to maintain yaw control while hovering at high density altitude, which resulted in a loss of tail rotor effectiveness.

## 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") = 2012
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('54585'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=54585&year=2012

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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.