# NTSB CEN17WA310: Piper PA28, Berghaus Diavolezza, Switzerland, August 4, 2017

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Foreign investigation
- Date: August 4, 2017, 07:20 local (07:20 UTC)
- Place: Berghaus Diavolezza, Switzerland
- Coordinates: 46.408889, 9.874722 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.4089&lon=9.8747&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-cruise: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120)
- Highest injury: Fatal
- Injuries: 3 fatal, 1 serious
- Status: Led by another country's authority
- NTSB office: Central Region
- Lead agency: Other
- NTSB case key (mKey): 95789
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN17WA310
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95789/pdf
- Page: https://openairdocs.org/ntsb/CEN17WA310

## Sequence of events

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

- [Enroute-cruise: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120) (defining event); cases with it: [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/sequence.md)

## Factual narrative

On August 4, 2017, at 0720 UTC, a Piper PA-28-181, Swiss registration HB-PER, owned and operated by a private individual, impacted mountainous terrain near Berghaus Diavolezza, Switzerland. The pilot and two passengers on board were fatally injured. A third passenger received serious injuries. The airplane sustained substantial damage. Visual meteorological conditions prevailed at the time of the accident. The foreign, non-scheduled local flight departed Samedan, Switzerland, about 0710 UTC.This investigation is under the jurisdiction of the government of Switzerland. Any further information regarding the investigation can be obtained from the Swiss Transportation Safety Investigation Board at: Swiss Transportation Safety 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 This report is for informational purposes only and contains only information released by, or obtained from, the STSB of Switzerland.

## Aircraft

- Registration: HB-PER (not matched to a registry record)
- Reported make and model: PIPER PA28 (181)
- Category: Airplane
- Serial number: 28-8090221
- Damage: Substantial damage
- Fire: Unknown
- Operator: Motorfluggruppe Oberengadin
- Registered owner: Motorfluggruppe Oberengadin

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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