# NTSB WPR26LA368: Gronberger Sergio A Sportsman GS-2, N360ET, Lake Goodwin, WA, September 30, 2026

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Investigation open
- Date: September 30, 2026, 13:20 local (20:20 UTC)
- Place: Lake Goodwin, WA
- Coordinates: 48.152081, -122.26525
- Nearby events: https://openairdocs.org/map.md?lat=48.1521&lon=-122.2652&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Investigation ongoing
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Western Pacific Region
- Parties: FAA SEA FSDO
- NTSB case key (mKey): 203946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR26LA368
- Latest NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/203946/pdf
- Page: https://openairdocs.org/ntsb/WPR26LA368

## Sequence of events

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

- [Landing-flare/touchdown: Hard landing](https://openairdocs.org/ntsb-events/092) (defining event); cases with it: [Gronberger Sergio A SPORTSMAN GS-2, 1 case](https://openairdocs.org/ntsb-events/092/sequence.md?model=05641MS), [All aircraft, 2,102 cases](https://openairdocs.org/ntsb-events/092/sequence.md)

## Aircraft

- Registration: [N360ET](https://openairdocs.org/aircraft/N360ET), registered now, S/N 0007505, built 2023 (OpenAirDocs)
- Reported make and model: GRONBERGER SERGIO A SPORTSMAN GS-2
- Registry model: [Gronberger Sergio A SPORTSMAN GS-2](https://openairdocs.org/model/gronberger-sergio-a-sportsman-gs-2) (registry code 05641MS) (OpenAirDocs)
- Registry engine: [Lycoming YIO-390-A3B6](https://openairdocs.org/engine/lycoming-yio-390-a3b6) (registry code 42420, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 0007505
- Year built: 2023
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gronberger Sergio A
- Registered owner: Gronberger Sergio A

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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