# NTSB CEN16WA150: Robinson R22 Beta, Bern, Switzerland, April 6, 2016

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Foreign investigation
- Date: April 6, 2016, 13:30 local (13:30 UTC)
- Place: Bern, Switzerland
- Coordinates: 46.912223, 7.289999 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.9122&lon=7.2900&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-cruise: Electrical system malf/failure](https://openairdocs.org/ntsb-events/332)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Led by another country's authority
- NTSB office: Central Region
- Lead agency: Other
- NTSB case key (mKey): 92999
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN16WA150
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/92999/pdf
- Page: https://openairdocs.org/ntsb/CEN16WA150

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute-cruise: Electrical system malf/failure](https://openairdocs.org/ntsb-events/332) (defining event); cases with it: [All aircraft, 182 cases](https://openairdocs.org/ntsb-events/332/sequence.md)

## Factual narrative

On April 6, 2016, about 1330 Universal Coordinated Time (UTC), the crew of a Robinson R22 BETA, Swiss registration HB-ZGO, made a precautionary landing at Bern Airport (LSZB), Bern, Switzerland, after they smelled smoke. They noted the alternator had failed and the electrical system was shut down. The alternator fire was extinguished on landing. The two pilots were not injured. The helicopter received minor damage. The helicopter was registered to and operated by Mountain Flyers 80 Ltd. Visual meteorological conditions prevailed at the time of the incident. The local flight originated from LSZB at an undetermined time. The accident investigation is under the jurisdiction and control of the Swiss Transportation Safety Board (STSB). This report is for informational purposes only and contains information released by or obtained from the government of the Switzerland. Further information pertaining to this accident may be obtained from: Swiss Transportation Safety Board Aeropole 1, 1530 Payerne Bern, Switzerland

## Aircraft

- Registration: HB-ZGO (not matched to a registry record)
- Reported make and model: ROBINSON R22 BETA
- Category: Helicopter
- Serial number: 3830
- Engines: Lycoming O-360-J2A reciprocating
- Damage: Minor damage
- Fire: In-Flight
- Registered owner: Mountain Flyers 80 Ltd.
- Airworthiness certificate: Unknown
- Departed: LSZB, Berne
- Destination: LSZB, Berne
- Airport: LSZB, Berne Airport

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot
- Pilot

## Weather

- Conditions: Visual (VMC)
- Observed at: LSZB

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.

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