# NTSB CEN13WA146: Bell UH1H, Ruthi, Switzerland, December 20, 2012

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Foreign investigation
- Date: December 20, 2012, 15:23 local (15:23 UTC)
- Place: Ruthi, Switzerland
- Coordinates: 47.288055, 9.542778 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.2881&lon=9.5428&mi=10
- Highest injury: Minor injuries
- Injuries: 1 minor, 3 uninjured
- Status: Led by another country's authority
- NTSB office: Central Region
- Lead agency: Other
- NTSB case key (mKey): 86107
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN13WA146
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/86107/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=86107
- Page: https://openairdocs.org/ntsb/CEN13WA146

## Factual narrative

On December 20, 2012, at 1523 UTC, a Bell UH-1H, Swiss registration HB-RXC, owned and operated by a private individual, was destroyed when it impacted terrain near Ruthi, Switzerland, following an engine malfunction. The pilot and two passengers on board were not injured. A third passenger received minor injuries. Visual meteorological conditions prevailed at the time of the accident. The foreign, non-scheduled cross-country flight departed Buchs, Switzerland, and was en route to St-Gallen-Altenrhein, Switzerland. The helicopter's T53-L-13B engine was examined under the oversight of the National Transportation Safety Board at Honeywell Aerospace, Incorporated, Phoenix, Arizona, on May 21-22, 2013. This investigation is under the jurisdiction of the government of Switzerland. Any further information regarding the investigation can be obtained from the Swiss Accident Investigation Board at: Swiss Accident Investigation Board Aviation Division Aeropole 1, Route de Morens, 1530 Payerne Switzerland Telephone: +41 26 662 33 33 Facsimile: +41 26 662 33 01 E-mail: info@sust.admin.ch

## Aircraft

- Registration: HB-RXC (not matched to a registry record)
- Reported make and model: BELL UH1H (NO SERIES)
- Serial number: 4732
- Damage: Destroyed
- Flight: Personal, Non-U.S., non-commercial
- Operator: Hanspeter Stricker
- Registered owner: Hanspeter Stricker

## Docket (1 files)

The files NTSB released with the investigation on May 30, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=86107. 29 KB in all.

- Memorandum of Investigative Authority, Switzerland (item 1, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40392029&FileExtension=.PDF&FileName=Memorandum%20of%20Investigative%20Authority,%20Switzerland-Master.PDF

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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