Military

The airplane was completing a flight from Belém to Cachimbo Airport, Novo Progresso, with an intermediate stop in Jacareacanga. During the second leg, the crew informed ground he encountered technical problems with the radiocompas and was cleared to return to Jacareacanga. By night and due to the lack of points of reference on the ground, the crew lost his orientation and was unable to locate the Jacareacanga Airport. Later, the captain informed ground he try to divert to Manaus but he was eventually forced to attempt an emergency landing due to fuel exhaustion. The airplane struck trees, stalled and eventually crashed in a swampy area located in the region of Coari. As the airplane failed to arrive at Cachimbo Airport, SAR operations were conducted and the wreckage was found 10 days later in an isolated area. Five occupants were found alive while 20 others were killed.

While cruising by night on a flight from Beira to Lourenço Marques, the crew encountered technical problems and elected to make an emergency landing. The crew completed a belly landing on a beach located in Praia Sepúlveda, south of Xai-Xai. All 15 occupants escaped uninjured while the airplane was damaged beyond repair.

Suffered a ground accident at Amman Airport. No casualties.

En route, the crew encountered an unexpected situation and was forced to attempt an emergency landing. The four engine aircraft crash landed in a field located 2 km southeast of Samsun Airport and came to rest in flames. While all six crew members escaped uninjured, the aircraft was partially destroyed by fire.

Crashed in unknown circumstances somewhere in Salvador. All 12 occupants were killed, among them high ranking officers and family members.

Few minutes after takeoff from Kadena AFB in Okinawa, while climbing to an altitude of 12,450 feet, the engine number four began to malfunction and was shut down by the crew who also feathered the propeller. The crew was cleared to return to Kadena for an emergency landing. On final approach, while at an altitude of 2,500 feet, the three remaining engines failed simultaneously. The captain decided to ditch the airplane into the sea, about 5 km offshore. The airplane broke in two and partially sank while all nine crew members were rescued.

Shortly after takeoff from RAF Butterworth, while climbing, one of the engine failed. The captain decided to attempt an emergency landing but the undercarriage collapsed on landing. The airplane slid for several yards before coming to rest. There were no casualties but the airplane was written off.

En route from Chiraz to Tehran, while cruising in stormy weather, the airplane exploded and crashed near Zarand. All 23 occupants were killed.

While taxiing to the runway for takeoff the crew completed the Before Takeoff Checklist. The copilot inadvertently missed the item referring to the automatic Spoiler Select Switch. The switch should have been in the "Rejected Takeoff" (RTO) position, but was in the "Autoland" position when the airplane departed. Unnoticed by the crew, between 34-60 Knots, the spoilers automatically deployed to the ground position. The crew noticed a reduced acceleration rate, but elected to continue the takeoff. The aircraft became airborne, accelerated poorly and began a shallow descent. It crashed into the sea just off the end of the runway. Six crew members were killed while two others were rescued.
Those killed were:
Maj Harry Milton Brenn,
Cpt Morris Bowdoin Witt,
SMS Roy Earl Shults,
M/Sgt Herman Eugene Miller,
T/Sgt Marshall Edward Brown,
T/Sgt Harold Eugene Mahy.

After takeoff from Yeouido AFB in Seoul, while climbing to Daegu in poor weather conditions, the captain informed ATC about the failure of the left engine and elected to return for an emergency landing. Shortly later, the airplane went out of control and crashed in a huge explosion in the district of Kum Ho-Dong. The aircraft disintegrated on impact and several houses and buildings were destroyed. All 15 occupants were killed as well as 44 people on the ground. 120 other people were injured, 23 of them seriously. At the time of the accident, weather conditions were poor with fog and drizzle.