TOTD re $600K rework job...
The beartrap and deck handling equipment had to be completely redesigned for the Cyclone. The large steel tail probe bars required by the Sea King at the after end of the flight deck had to be removed (and then reinstalled again in the case of HMCS REGINA). The Sea King's tail guide winch system had to be replaced by a nose guide winch system because, like the Sea King's tail wheel, the Cyclone nose wheel is fully castoring (not steerable) and needs to be kept from rolling during ship roll (this gear had to be reversed in the case of REGINA); a nose wheel tray had to be added (and removed in the case of REGINA) to keep the Cyclone straight when being moved in and out of the hangar because it has to be offset well to port of the hangar centreline in order to fit in the hangar whereas the Sea King rides along the centre deck track; work platforms and other hangar apparatus required for the Sea King that had been removed needed to be reinstalled in REGINA,etc, etc. Bear in mind the $600K figure was undoubtedly an out-of-the-anus estimate. I would not be surprised to learn that the bill was actually more than that.