I believe the Hamilton island one was at low level (below recommended deployment altitude) and it flipped over when it hit the water and Steve escaped out the back window by using the patented Cirrus (tm) safety hammer. Will have to drag up the prune thread on it, but none-the-less it was certainly deployed.
One other went off due to engine failure near Sydney that was unsuccessful and was also at a very low altitude.
Pilot escapes sinking plane | Mackay Daily Mercury
ASN Aircraft accident 24-DEC-2009 Cirrus SR22 GTS G3 Turbo VH-SLS
A few moments before the crash the pilot activated the CAPS (emergency parachute).
Maybe that wasn't "successful" in the eyes of the ATSB.
CAPS deployment #21, Dec 2009, Hamilton Island, Australia, 1 seriously injured Factors: engine loss of power, misfueled with Jet-A, attempted return to airport; Activation: low altitude, 441 feet above ocean; Weather: VMC; Landing: ocean
You learn something every day, I didn't recall reading that back when he dropped in the ocean.