Aargau

The airplane departed Zurich-Kloten Airport runway 28 at 1314LT bound for Tel Aviv with 38 passengers and nine crew members on board. Seven minutes later, while climbing to an altitude of 14,000 feet some 41 km south of the airport, the captain contacted ATC and declared an emergency stating that a denotation occurred in the cargo compartment and that the cabin pressure was dropping. He requested an immediate return to Zurich and during the following minutes, he reported successively that smoke spread in the cabin and cockpit and that some of the instruments were unserviceable. He also reported the failure of the electrical system and asked for a radar assistance. While he was vectored to the airport, the copilot said 'smoke on board, I don't see anything' then the captain reported 'we are falling, goodbye everyone'. The airplane then completed a 180 turn, nosed down and crashed in a huge explosion in a wooded area located near the village of Würenlingen, some 22 km northwest of runway 14 threshold. The airplane totally disintegrated on impact and all 47 occupants were killed. At the time of impact, the airplane was in a nose-down attitude of 12° and at a speed of 422 knots and in a slight left bank. At the time of the accident, weather conditions were marginal with rain falls, a cloud base at 300 meters, overcast till 600 meters, visibility up to 5 km and wind 15-20 knots. Among the passengers were 15 Israelis, nine Germans, five Americans, two Canadians, two Mexicans, one Belgian, one French, one British, one Thai and 10 Swiss citizens, among them all nine crew members.

Flight SR-306 was a scheduled international flight from Zürich to Rome, with an intermediate stop at Geneva. Dense fog was existing at the time of departure and at 0600 hours the flight was informed that the RVR was 180 m for runway 34 and 60 m for runway 16, and that there was a light northerly wind (1 to 2 kt). At 0604 hours the flight was authorized to taxi to runway 34 behind an accompanying vehicle. At 0605 the crew reported that they will taxi half way down runway 34 to inspect the fog condition and then return to takeoff position. This was done, using at times considerable engine power probably in an attempt to disperse the fog: Around 0612 hours the aircraft was back to the threshold of runway 34 and permission to takeoff was granted. The flight took off at 0613 hours and started to climb to flight level 150, its cruising altitude. Four minutes later witnesses on the ground noticed a whitish trail of smoke on the left side of the aircraft and suddenly a long flame from the left wing-root. Around 0620 hours the aircraft reached an altitude of approximately 2700 m, it then began to lose height, entered a gentle left turn loosing height more rapidly and finally went into a steep dive. Parts of the aircraft became detached and at 0621 hours a "MAYDAY" message was received. At 0622 hours the aircraft crashed into the ground on the outskirts of Dürrenäsch, at an elevation of 559 m, approximately 35 km from Zürich-Kloten Airport. The aircraft disintegrated on impact, causing a huge crater at the point of impact and all 80 occupants were killed, among them 43 habitants of the small village of Humlikon (200 habitants in total). Farmers specialized in milk business, they were flying to Geneva to visit a milk-farm.

Shortly after takeoff from Spreitenbach, while climbing to a height of some 50 meters, the single engine went out of control and crashed in a field. A passenger was killed while both other occupants were seriously injured. It appears that the loss of control occurred while the aircraft was towed by another airplane (towing practicing). The aircraft was owned by E. Spahni.

The single engine airplane departed Munich-Oberschleissheim Airport on a night schedule service to Stuttgart, carrying four passengers and one pilot. En route, the pilot encountered poor weather conditions with strong and unfavorable winds which caused the airplane to drift to the southwest. While flying over Switzerland, the pilot encountered limited visibility due to foggy conditions and attempted to divert to Zurich. Eventually, he reduced his altitude and elected to make an emergency landing when the aircraft collided with trees and crashed in a wooded area located in Untersiggenthal. A passengers was killed and four other occupants were injured, one seriously.