# NTSB GAA21WA242: Mooney M20M, N999U, Tököl, Hungary, September 28, 2021

- Type: NTSB accident investigation
- Classification: Accident · Class 5 · Foreign
- Date: September 28, 2021, 13:00 local (11:00 UTC)
- Place: Tököl, Hungary
- Coordinates: 47.34512, 18.981413 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.3451&lon=18.9814&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Unknown or undetermined](https://openairdocs.org/ntsb-events/000)
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: General Aviation Accidents
- Lead agency: Other
- NTSB case key (mKey): 104001
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA21WA242
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104001/pdf
- Page: https://openairdocs.org/ntsb/GAA21WA242

## Sequence of events

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

- [Landing: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) (defining event); cases with it: [Mooney M20M, 1 case](https://openairdocs.org/ntsb-events/000/sequence.md?model=5870222), [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md)

## Aircraft

- Registration: [N999U](https://openairdocs.org/aircraft/N999U), registered now, S/N 27-0207, built 1995 (OpenAirDocs)
- Reported make and model: MOONEY M20M
- Registry model: [Mooney M20M](https://openairdocs.org/model/mooney-m20m) (registry code 5870222) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 27-0207
- Year built: 1995
- Damage: Substantial damage
- Flight: Non-U.S., non-commercial

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.