Date:	Wednesday 4 October 2023
Time:	10:43
Type:	Robinson R44 Clipper II
Owner/operator:	Schantz Ejendomme
Registration:	OY-HFS
MSN:	14473
Year of manufacture:	2021
Total airframe hrs:	355 hours
Engine model:	Lycoming IO-540-AE1A5
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	0.9 nm ESE of Kolding/Vamdrup (EKVD) -   Denmark
Phase:	Approach
Nature:	Private
Departure airport:	Private Airfield near Varde
Destination airport:	Kolding/Vamdrup Airport (EKVD)
Investigating agency:	HCLJ
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The Robinson R44 Clipper II force landed in a field after experiencing issues with the tail rotor.
The tailboom was severed in the accident.


CONCLUSIONS
En route close to Holsted, the helicopter engine and rotor Revolutions Per Minute (RPM) dropped below 70%. The pilot managed to recover from the situation and continued the flight.
During approach to EKVD, the helicopter engine and rotor RPMs increased to 120%. The pilot did not attempt to recover from the high RPM situation. The pilot performed an autorotation. The ground contact was hard, and the helicopter crashed in a field.
The safety investigation did not identify the cause of neither the low engine RPM state nor the high engine RPM state.
Preventative measures to mitigate engine RPM runaways, in the form of emergency procedures and a safety alert, were available at the time of the accident

NTSB Investigation Number: GAA24WA001
https://www.airhistory.net/photo/456412/OY-HFS (photo)
https://www.radarbox.com/data/registration/OY-HFS
https://koldingnyheder.dk/dramatisk-noedlanding-ved-vamdrup/

Date/time	Contributor	Updates
06-Oct-2023 13:54	aus	Added
06-Oct-2023 13:56	harro	Updated
08-Aug-2024 11:34	ASN	Updated [Location, Nature, Departure airport, Destination airport, Narrative, Accident report, ]