This Incident happened in 2021.
A loaded Royal Air Force Chinook HC6A (CH-47F) became stuck in soft ground after a forced landing due to a technical problem.
Aircraft soon sank into the field, likely due to the extended period of wet weather. However, the extremely soft ground had made the recovery of the Chinook to RAF Benson very difficult.
RAF engineers deployed to the site to assess the mechanical issue and has made the recovery of the Chinook to RAF Benson very difficult. A tri-Service team of specialists have been worked hard to safely extract the aircraft from the mud.
Source – RAF Benson