# NTSB investigations: Messerschmitt-Bolkow-Blohm BK 117 B-2

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 CEN25LA163](https://openairdocs.org/ntsb/CEN25LA163.md): Messerschmitt-Bolkow-Blohm BK 117 · Hartford, IL · Accident · Serious injuries · Class 4 · Limited · Final report · Apr 25, 2025 · N880SL · Substantial damage
  > The pilot’s failure to maintain directional control during the initial climb at night from a confined area landing zone, that resulted in an impact with a tree, a loss of control, and a subsequent impact with terrain.
- [NTSB ERA22LA229](https://openairdocs.org/ntsb/ERA22LA229.md): Messerschmitt-Bolkow-Blohm BK 117 B-2 · Rochester, NY · Accident · No injuries · Class 3 · Limited · Final report · May 14, 2022 · N370SS · Substantial damage
  > An unintentional movement of the cyclic control before takeoff, which resulted the main rotor blades contacting the fixed wire cutter.
- [NTSB CEN18LA115](https://openairdocs.org/ntsb/CEN18LA115.md): Messerschmitt-Bolkow-Blohm BK 117 B-2 · Sheboygan, WI · Accident · No injuries · Limited investigation · Final report · Mar 5, 2018 · N1174U · Substantial damage
  > The restricted cyclic control movement for reasons that could not be determined because postaccident examination and testing of the cyclic control system did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal…
- [NTSB CEN17FA252](https://openairdocs.org/ntsb/CEN17FA252.md): Airbus Helicopters Deutschland MBB-BK 117 B-2 · Perryville, MO · Accident · Minor injuries · Field investigation · Final report · Jul 2, 2017 · N238BK · Substantial damage
  > Fuel starvation due to the pilot’s failure to turn on the fuel transfer pump switches during takeoff, which led to a total loss of engine power. Contributing to the accident was the pilot's improper decision to activate the annunciator panel’s dimming…
- [NTSB CEN12CA078](https://openairdocs.org/ntsb/CEN12CA078.md): Messerschmitt-Bolkow-Blohm BK 117 B-2 · Carbondale, IL · Accident · No injuries · Data collection · Final report · Nov 13, 2011 · N330SL · Substantial damage
  > The main rotor blade’s contact with the vertical stabilizer during the engine shutdown in strong, gusty wind conditions.
- [NTSB NYC97FA076](https://openairdocs.org/ntsb/NYC97FA076.md): Eurocopter MBB-BK117-B2 · New York, NY · Accident · 1 fatal · Field investigation · Final report · Apr 15, 1997 · N909CP · Destroyed
  > Fatigue failure of the vertical fin, accelerated by the installation of blind rivets in lieu of solid rivets in the replacement of the yaw SAS mount support, which resulted in the loss of helicopter directional control and collision with the terrain (water).…

## 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 ('5626013'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=5626013

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