Complaint reports catalogue a litany of major problems. Vessels plagued by faulty equipment, lack of spare parts. Hatches that wouldn't close. Rusting battery cables. Wiring schematics that couldn't be found. No spare parts. Torpedo tubes that clamped shut in warm water. Faulty computers. Exhaust valves cracking. A mystery dent. Trouble with the escape tower. Even floors coming apart at the seams. These are just some of the problems Canada's four used submarines encountered before the electrical fire Oct. 5 that killed Lieut. Chris Saunders, crippled HMCS Chicoutimi and caused the sub program to be docked indefinitely. Submarine complaint reports —...