Part of the agreement with the CAA in respect of the Bond BO 105 re-fuselage program was that the redundant fuselages should be rendered unairworthy. This was done by cutting a chunk out of the vertical main frames. One of these wrecked fuselages was "blown up" for a tv program and another was used as a dog training aid by Devon and Cornwell police.
The main problem with the 105 was severe cracking starting around the 6000 hour mark which was due to the vibration characteristics of the aircraft and the material specification.
The repair costs became so expensive that the re-fuselage and stretch became a viable option.
The cracking would become so bad that I saw one aircraft in which the whole structure above floor level had to be removed!!!!!!!!
So if you have your eye on an old second hand 105 beware!!!!!!