# NTSB GAA26WA023: Guimbal Cabri, Locarno, Switzerland, October 18, 2025

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 5 · Foreign
- Date: October 18, 2025, 14:05 local (14:05 UTC)
- Place: Locarno, Switzerland
- Coordinates: 46.1653, 8.8778 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.1653&lon=8.8778&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Defining event: [Autorotation: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: General Aviation Accidents
- Lead agency: Other
- Parties: Swiss Transportation Safety Investigation Board
- NTSB case key (mKey): 201995
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA26WA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/201995/pdf
- Page: https://openairdocs.org/ntsb/GAA26WA023

## Sequence of events

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

- [Autorotation: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) (defining event); cases with it: [All aircraft, 1,858 cases](https://openairdocs.org/ntsb-events/342/sequence.md)

## Aircraft

- Registration: HB-ZYZ (not matched to a registry record)
- Reported make and model: GUIMBAL CABRI (G2)
- Category: Helicopter
- Serial number: 1205
- Year built: 2017
- Engines: Lycoming O-360-J2A 180 horsepower reciprocating
- Damage: No damage
- Flight: Instructional, Non-U.S., non-commercial
- Operator: Swiss Helicopter AG
- Registered owner: Swiss Helicopter AG
- Airworthiness certificate: Standard, Normal
- Departed: LSZL, Locarno, OF
- Destination: LSZL, Locarno, OF
- Airport: LSZL, Locarno Airport
- Equipment: ADS-B

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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