Sadly ironic that when we had unit seat bays anyone attempting similar sort of work on a installed seat would have most probably faced a tech charge. It most definitely would not be sanctioned. We had a harrier gr7 sat on the ground in the USA for nearly a week so a seat team could come out to change an item that was a much simpler task.
Would like to see the risk register for the removal of seat servicing and support at unit level.