On 10 January 1995 Merpati Nusantara Airlines Flight 6715, a scheduled domestic flight in Indonesia from Sultan Muhammad Salahudin Airport, Sumbawa, to Frans Sales Lega Airport, Ruteng, disappeared over the Molo Strait, near the island of Flores. The aircraft is presumed to have crashed in the strait, with the death of all 14 people on board.
The aircraft involved was a de Havilland Canada DHC-6 Twin Otter 300, built in 1973 and registered as PK-NUK. The aircraft was named Sangihe. It was equipped by two Pratt & Whitney Canada PT6A-27 engines. On board there were four crew members and ten passengers.
On 10 January 1995, Flight 6715 departed Sultan Muhammad Salahudin Airport for a flight to Ruteng. The aircraft never arrived at its destination, after disappearing while flying over the Molo Strait, just off the coast of Flores. The aircraft wreckage, nor any of its 14 occupants were discovered. Bad weather conditions were present at the time of the accident and are cited as the most probable cause of the accident. Others suggest instead that an explosion, that occurred in the cargo hold of the aircraft, was the cause of the accident.