# NTSB DCA22WA165: drone Viper Pro, Felthorpe, United Kingdom, July 30, 2022

- Type: NTSB accident investigation
- Classification: Accident · Class 5 · Foreign
- Date: July 30, 2022, 12:00 local (12:00 UTC)
- Place: Felthorpe, United Kingdom
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Comm system malf/failure](https://openairdocs.org/ntsb-events/336)
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 105628
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA22WA165
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105628/pdf
- Page: https://openairdocs.org/ntsb/DCA22WA165

## Sequence of events

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

- [Enroute: Comm system malf/failure](https://openairdocs.org/ntsb-events/336) (defining event); cases with it: [All aircraft, 20 cases](https://openairdocs.org/ntsb-events/336/sequence.md)

## Aircraft

- Registration: UNREG (not matched to a registry record)
- Reported make and model: drone Viper Pro
- Category: Helicopter, unmanned
- 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.

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