# Accident 20180304001429A: Messerschmitt-Bolkow-Blohm BK 117 B-2, Sheboygan, WI, March 4, 2018

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 4, 2018, 22:57 local time
- Place: Sheboygan, WI
- Airport: Sheboygan County Memorial Airp
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: Air taxi and commuter (Part 135)
- Operator: QMLA
- Location: 43.7644° N, 87.8514° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.7644&lon=-87.8514&mi=10
- Aircraft: N1174U, registered now (https://openairdocs.org/aircraft/N1174U) (OpenAirDocs)
- Registry model: Messerschmitt-Bolkow-Blohm BK 117 B-2 (registry code 5626013, https://openairdocs.org/model/messerschmitt-bolkow-blohm-bk-117-b-2) (OpenAirDocs)
- Registry engine: Lycoming LTS-750-B-1 (registry code 41564, https://openairdocs.org/engine/lycoming-lts-750-b-1) (OpenAirDocs)
- Reported make and model: MESSERSCHMITT-BOLKOW-BLOHM BK 117 B-2
- Reported engine: LYCOMING LTS-750-B-1
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Commercial pilot, flight instructor
- Pilot flight hours: 5,684 total, 84 in this make and model, 18 in the last 90 days
- NTSB investigation: [NTSB CEN18LA115](https://openairdocs.org/ntsb/CEN18LA115) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20180304001429A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON MARCH 4, 2018, ABOUT 2324 CENTRAL STANDARD TIME, A MESSERSCHMITT-BOLKOW-BLOHM BK 117 B-2 HELICOPTER, N1174U, OPERATED BY AIR METHODS ENGLEWOOD, COLORADO DEPARTED FOND DU LAC, WISCONSIN (FLD) ENROUTE TO ST. NICHOLAS HOSPITAL (WS56) SHEBOYGAN, WISCONSIN. THE PILOT NOTED RESTRICTED CYCLIC MOVEMENT AND DIVERTED TO SHEBOYGAN COUNTY MEMORIAL AIRPORT (SBM). THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE DURING A HARD LANDING AT SHEBOYGAN COUNTY MEMORIAL AIRPORT (SBM). THE COMMERCIAL PILOT, FLIGHT NURSE, AND, FLIGHT PARAMEDIC WERE NOT INJURED. THE FLIGHT WAS OPERATED UNDER THE PROVISIONS OF TITLE 14 CODE OF FEDERAL REGULATIONS PART 135 AS A HELICOPTER AIR AMBULANCE. NIGHT VISUAL METROLOGICAL CONDITIONS PREVAILED AT THE TIME OF THE ACCIDENT, AND A COMPANY VISUAL RULES FLIGHT PLAN WAS FILED. THE PILOT WAS WEARING NIGHT VISION GOGGLES.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN18LA115](https://openairdocs.org/ntsb/CEN18LA115), Mar 5, 2018: Messerschmitt-Bolkow-Blohm BK 117 B-2 (N1174U), Sheboygan, WI, substantial damage. Probable cause: 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…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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