Sunstate DH8D near Brisbane on Mar 24th 2014, lavatory fire indication

A Sunstate Airlines de Havilland Dash 8-400 on behalf of Qantas, registration VH-QOT performing flight QF-2128 from Sydney,NS to Gladstone,QL (Australia) with 33 passengers and 4 crew, was enroute at FL240 about 135nm southwest of Brisbane,QL (Australia) when the crew reported smoke in the cockpit. The aircraft diverted to Brisbane for a safe landing about 30 minutes later.

Passengers reported fumes occurred in the cabin, the air conditioning shut down followed by a fire detector going off in the lavatory.