# NTSB investigations: Eurocopter Deutschland MBB-BK 117 C-1

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 ERA25LA204](https://openairdocs.org/ntsb/ERA25LA204.md): Eurocopter Deutschland MBB-BK 117 C-1 · Fort Washington, PA · Accident · Minor injuries · Class 3 · Limited · Final report · May 19, 2025 · N117NC · Substantial damage
  > Maintenance personnel’s failure to identify and replace damaged rivet nuts at the air conditioning louver assembly, which resulted in the separation of the louver assembly from the helicopter, the louver assembly’s impact with the tail rotor, and subsequent…
- [NTSB ERA11IA091](https://openairdocs.org/ntsb/ERA11IA091.md): Eurocopter Deutschland MBB-BK 117 C-1 · Boston, MA · Incident · No injuries · Incident investigation · Final report · Dec 4, 2010 · N271NE · Minor damage
  > Improper installation of wiring associated with a medical cabinet interior, which resulted in chafing and a subsequent in-flight fire. Contributing to the incident was inadequate maintenance procedures for continued airworthiness.
- [NTSB FTW01LA166](https://openairdocs.org/ntsb/FTW01LA166.md): Eurocopter BK117-C1 · Decatur, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 20, 2001 · N313LS · Substantial damage
  > the pilot's failure to follow the checklist and turn on the fuel transfer pumps, which resulted in fuel starvation and a dual loss of engine power while in cruise flight.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5626025'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=5626025

---
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.