- Date
- October 18, 2025, 14:05 local (14:05 UTC)
- Place
- Locarno, Switzerland
- Injuries
- 2 uninjured
- Damage
- No damage
- Phase of flight
- Emergency descent
- Aircraft
- HB-ZYZGuimbal Cabri
- Defining event
- Autorotation: Loss of engine power (partial)
- Investigation class
- Class 5 - No publish
- NTSB office
- General Aviation Accidents
- Lead agency
- Other
- Parties
- Swiss Transportation Safety Investigation Board
- Case key
- 201995
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Loss of engine power (partial)All aircraft: 1,858 casesDefining event
Aircraft
- Registration
- HB-ZYZ
- Reported as
- Guimbal Cabri (G2)
- Category
- Helicopter
- Serial number
- 1205
- Built
- 2017
- Engine
- 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