From:
http://www.geocities.com/khlim777_my/asditchingissues.htm
A Boeing 737-300 ditched successfully
On the 16th of January 2002, a Boeing 737-300 belonging to an Indonesian Airline had both its engines flamed out - a term to describe that the jet engines had failed. It happened as it commenced its descend to 9000 feet through thunderous clouds that were filled with rain.
The crew then tried to relight the engines but it failed to revive. Compared to a Boeing 777 where the relighting process is automatic, the Boeing 737 did not appear to have this advanced facility. In addition to this, on a Boeing 777, the APU will automatically light up as well when it senses both engine failures. The APU or the auxiliary power unit is a small jet engine that is located in the tail section and powers the electricity and air-conditioning of the airplane.
When the engine failed, the Captain maneuvered the airplane so that it could glide at an optimum speed of around 240 knots. This would cause the airplane to lose height rapidly at about 3000 feet per minute. He then attempted to make a forced landing, but preferred to ditch into water if only he could locate the sea. As the sea was out of reach, he decided to ditch on a river instead.
During the forced landing process, the Captain tried to decelerate from 240 to 150 knots by use of the flaps, but the hydraulics were not available to power the action. (In a Boeing 777, there is an emergency device known as a RAT or Ram Air Turbine, which is powered by free airflow as the airplane glide down with dead engines. The RAT would provide some hydraulics as well as electrical power during this critical phase of the emergency.) Luckily, the ditching was very well executed and the Boeing 737 came to a stop, floating near the side of the river.
This was one of the very rare situations where a commercial airplane lost both engines and was able to ditch successfully. So Murphy Law is right! Engineers were unable to determine the exact cause of the failure yet but it was speculated that engine icing was one of the possible cause of the flame out. (In this accident, 23 people were injured in the plane carrying 54 passengers and a crew of 6. One stewardess died when she was drowned in the river.)