Date:	Tuesday 17 December 2019
Time:	day
Type:	DJI Inspire 2
Owner/operator:	Private
Registration:	unregistered
MSN:	N/K
Fatalities:	Fatalities: 0 / Occupants: 0
Other fatalities:	0
Aircraft damage:	Substantial
Location:	Lake Vyrnwy, Powys -   United Kingdom
Phase:	En route
Nature:	Survey
Departure airport:	Lake Vyrnwy, Powys
Destination airport:	Lake Vyrnwy, Powys
Investigating agency:	AAIB
Confidence Rating:	Information verified through data from accident investigation authorities

Narrative:
17 Dec 2019: DJI Inspire 2 crashed at Lake Vyrnwy, Powys. The incident was the subject of an AAIB Record-only investigation, published on 9 July 2020, and the following is the summary from the AAIB Report:

"The UAS flew a pre-programmed route correctly but the programmed altitude was below the top of some trees along the route. The UAS struck a tree and dropped to the ground".

Damage sustained to the UAV was not reported, but was presumably severe/significant enough to warrant that the incident be a notifiable one.

Lake Vyrnwy (Welsh: Llyn Efyrnwy, or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. It flooded the head of the Vyrnwy (Welsh: Afon Efyrnwy) valley and submerged the village of Llanwddyn.

1. AAIB Record-only UAS investigations: https://www.gov.uk/government/publications/aaib-record-only-uas-investigations-reviewed-april-may-2020/aaib-record-only-uas-investigations-reviewed-april-may-2020
2. https://www.dji.com/uk/inspire-2
3. https://www.dyfed-powys.police.uk/SysSiteAssets/foi-media/dyfed-powys/disclosure-2020/january/final-response-1055.2019
4. https://en.wikipedia.org/wiki/Lake_Vyrnwy

Other occurrences involving this aircraft


19 January 2020	Unregistered	Private	0	Ewhurst Park Lake, Ewhurst Park Ewhurst Tadley Hampshire RG26 5RF		w/o
13 February 2020	Unregistered	Private	0	Bentwaters Park, Rendlesham, Woodbridge, Suffolk IP12 2TW		w/o
8 June 2020	Unregistered	Merlin Entertainments Ltd (Thorpe Park)	0	Thorpe Park, Staines Road, Thorpe, Chertsey, Surrey KT16 8PN		w/o
17 July 2020	Unregistered	Private	0	Immingham, South Humberside		sub
7 November 2020	Unregistered	Anglesey Drone Media Services	0	Anglesey (Ynys Môn), Gwynedd		sub
2 December 2020	Unregistered	Private	0	Oakham, Rutland		sub
Collision with pole or wires
9 December 2020	Unregistered	Private	0	Selattyn Hill, Oswestry Uplands, Oswestry, Shropshire		sub
15 December 2020	Unregistered	Private	0	Canary Wharf,West India Docks, Isle of Dogs, Tower Hamlets, London E14		sub
4 April 2021	Unregistered	Private	0	Covent Garden, Borough of Westminster, London WC2		sub
11 June 2021	Unregistered	Private	0	Hawkstone Park Motocross Circuit, near Shrewsbury, Shropshire		sub
5 September 2021	Unregistered	Private	0	Barnsley, South Yorkshire		sub
13 December 2021	Unregistered	Private	0	Traquair Forest, Traquair, Innerleithen, 7 miles South of Peebles		sub
15 December 2021	Unregistered	Private	0	Ipswich, Suffolk		sub
31 January 2023	unregistered	Private	0	Near Slough, Berkshire		sub
7 February 2023	unregistered	Private	0	Cantley Park, 108 Aintree Avenue, Doncaster, South Yorkshire		w/o
18 September 2023	unregistered	Private	0	near Northwich, Cheshire		w/o
17 October 2024	Unregistered	Private	0	Edinburgh, Lothian, Scotland		sub

Date/time	Contributor	Updates
18-Aug-2024 18:55	Dr. John Smith	Updated [Time, Registration, Cn, Operator, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative, Category, ]