Date:	Friday 28 May 2021
Time:	16:38 LT
Type:	Grob G-109
Owner/operator:	Private
Registration:	G-CLIA
MSN:	6108
Year of manufacture:	1982
Engine model:	Limbach L 2000-EB1AA
Fatalities:	Fatalities: 0 / Occupants: 2
Aircraft damage:	Substantial
Category:	Accident
Location:	Husbands Bosworth, Leicestershire -   United Kingdom
Phase:	Initial climb
Nature:	Private
Departure airport:	Husbands Bosworth, Leicestershire
Destination airport:	Sulby, Northamptonshire
Investigating agency:	AAIB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
Grob G-109 substantially damaged 28.5.2021 in an accident at Husbands Bosworth, Leicestershire. According to a rough translation from German into English of the original BFU Germany Report (see link #1 for the original German text):

"Event: Accident without injuries
Date, time: May 28, 2021
Location, State: Leicestershire, United Kingdom
Damage to aircraft: Seriously damaged
Source: Investigation by a foreign authority File number: BFU21-0365-DX
The aircraft sank shortly after take-off and collided with a a tree. The BFU supports the investigation because the Aircraft was designed/manufactured in Germany.
Aircraft: touring motor gliders
Pattern: GROB AIRCRAFT CONSTRUCTION - G-109
Type of operation: General Aviation - Private Sightseeing Flight - Local sightseeing flight

UPDATE:
The incident was also investigated by the CAA AAIB (see link #2 for the full report), and the following is the summary from their invesigation, published on 11 November 2021:

"The pilot seated in the left seat was nominated as pilot in command, and the co-owner, a qualified pilot, instructor and examiner was seated in the right seat and nominated as a passenger for the flight. During the takeoff, aircraft acceleration was sluggish, and the pilot called out his intention to stop. The passenger called out that he had control, and shortly afterwards the aircraft became airborne. It quickly became apparent that the aircraft was not climbing and, after reaching a maximum height of 100 ft agl, it began to descend. It was turned towards a field, but the right wing struck a tree as it descended, causing the aircraft to rotate through 180° and pitch down before striking the ground in a nose-down attitude. The canopy flew open and forward, and both occupants were able to leave the aircraft without assistance. Neither occupant was injured.

The takeoff had been attempted with the propeller in coarse pitch leading to a significant loss of performance.

=Damage sustained to airframe=
Per the above AAIB report "Extensive damage. The starboard wing and fuselage broke in two, the left wing broke but remained attached. Propeller damaged".

1. BFU Germany Accident Report BFU21-0365-DX at https://www.bfu-web.de/DE/Publikationen/Bulletins/2021/Bulletin2021-06.pdf?__blob=publicationFile (p.15)
2. https://assets.publishing.service.gov.uk/media/6167f9f3e90e07197867eb0e/Grob_G109_G-CLIA_11-21.pdf
3. https://en.wikipedia.org/wiki/RAF_Husbands_Bosworth#Current_use
4. https://www.flightradar24.com/data/aircraft/g-clia
5. Grob G109 G-CLIA at Hemploe Home Farm Welford~Northants 20 July 2021 (post accident damage): https://www.flickr.com/photos/jlt_egcc74/51327142119
6. https://air-britain.com/pdfs/abnews.pdf

Grob G109 G-CLIA post crash at Husbands Bosworth, Licestershire 28.5.2021 (top right picture):

AAIB November Bulletin now published https://t.co/PjkLngWVa4 pic.twitter.com/zbUMArkBX4

— AAIB (@aaibgovuk) November 11, 2021

Date/time	Contributor	Updates
11-Sep-2021 12:50	ASN archive	Added
11-Sep-2021 16:01	Dr. John Smith	Updated [Operator, Location, Nature, Departure airport, Source, Narrative, Category]
12-Nov-2021 18:19	Dr. John Smith	Updated [Time, Registration, Cn, Total occupants, Location, Departure airport, Destination airport, Source, Narrative]
12-Nov-2021 18:26	Dr. John Smith	Updated [Category]
12-Nov-2021 18:31	Dr. John Smith	Updated [Embed code]
12-Nov-2021 20:43	harro	Updated [Embed code, Accident report]