This from Defence.
The Royal Australian Navy submarine HMAS Farncomb is returning to Singapore after partial failure of its cooling system during the Five Power Defence Agreement (FPDA) Exercise Bersama Lima 2011 (BL11).
The submarine crew followed standard emergency operating procedures to clear the refrigerant gas, Freon which had leaked as a result of the failure. No one was injured.
Farncomb will undertake repairs in Singapore over the coming days.
Faulty Australian sub fleet costs $800M per year
Story surfaces of HMAS Farncomb dive and propulsion failure incident (Update-with Defence Response)
Great story about a Collins-class sub in an exercise that never happened