What happened
The flight crew encountered severe weather conditions that necessitated an immediate response. Due to the deteriorating atmospheric situation, the pilots were compelled to initiate an emergency landing procedure. The aircraft, a floatplane, impacted the surface of the Syltefjorden during this maneuver. Following the crash, all occupants on board were successfully rescued from the water. The impact caused extensive damage to the airframe, rendering the aircraft beyond repair.
Findings
The primary factor leading to the incident was the presence of very bad weather conditions which forced the crew to attempt an emergency landing. While the source material does not provide a formal investigation report or specific mechanical findings, it confirms that the environmental conditions were the direct cause of the emergency situation and subsequent crash.