Curtiss C-46 Commando

En route to Balmaceda-Teniente Vidal Airport, the crew was informed about poor weather conditions at destination and diverted to Chile Chico Airport. While approaching Chile Chico, the crew encountered poor visibility and the pilot in command decided to attempt an emergency landing in an open field. The aircraft crash landed in Los Antiguos, east of Chile Chico. While all 11 occupants were rescued, the aircraft was damaged beyond repair.

A first approach to Santos Dumont Airport was abandoned due to poor weather conditions. A second attempt to land was made with a tailwind and the aircraft landed on a wet runway. After touchdown, the airplane was unable to stop within the remaining distance, overran and plunged into the Guanabara Bay. All 38 occupants were rescued while the aircraft was lost.

On final approach to Iwakuni AFB, the aircraft was too low and hit the slope of a mountain 6,5 km short of runway. The aircraft was destroyed by impact forces and all three crew members were killed. They were returning to Japan following a supply mission in Daegu, South Korea.

En route to San Francisco, the crew encountered severe icing conditions and received the permission to return to Burbank. Shortly later, the pilot realized this was not possible and reduced his altitude in an attempt to make an emergency landing. The aircraft belly landed in a field located along a highway in Newhall. The aircraft slid on the ground and hit an electric pole before coming to rest. All three crew members were unhurt while the aircraft was damaged beyond repair.

On final approach to Rio de Janeiro-Santos Dumont Airport, the crew encountered severe turbulences. On the last segment, the airplane hit the ground short of runway. On impact, the right main gear was sheared off and the right engine was damaged. The pilot in command increased power on both engines and diverted to Rio de Janeiro-Galeão Airport for a safe landing. On touchdown, the airplane went out of control and came to rest in flames. All four crew members were rescued while the aircraft was destroyed by a post crash fire.

The aircraft left Medellín-Enrique Olaya Herrera Airport at 1418LT on a cargo flight to Barranquilla. En route, the airplane hit the slope of a mountain located 12 km from Yalí. The aircraft was destroyed and both crew members were killed.

After landing at Chongju AFB, while decelerating, the aircraft collided with a truck that was crossing the runway. The aircraft came to rest and all 15 occupants were injured. The truck's driver was killed.

All occupants decided to abandon the aircraft after an engine failed in flight. The airplane dove into the ground and crashed about 10 km northeast of Tachikawa AFB. There were no casualties.

Upon landing, an undercarriage collapsed. The aircraft went out of control, veered off runway and collided with two USAF Curtiss C-46 (registered 44-78270 and 44-78462) parked on the tarmac. All three aircraft were damaged beyond repair and two crew members were killed while the third occupants was injured. There were no other injuries on the ground.

Monarch's Flight 1090 was cleared by Air Route Traffic Control (ARTC) to proceed on an instrument flight plan at 9,000 feet, nonstop Chicago to Newark, New Jersey. The crew consisted of Captain Marvin C. Staddon, Copilot Arthur J. Howarth, and Stewardess Thelma Dennis. Total aircraft weight at the time of take-off was approximately 46,100 pounds, 1,100 pounds in excess of the authorized gross weight. According to the crew the disposable load was so distributed as to be within the certificated limits with respect to the center of gravity. Prior to being cleared for take-off, preflight checks were accomplished in accordance with company operating procedures. All items checked satisfactorily, and the captain started his take-off at 0227 on Runway 31. He advanced the throttles to approximately 45 inches manifold pressure and 2700 RPM. The copilot then continued to advance the throttles to a manifold pressure of 47 inches, tightened the friction locks and guarded the throttles with his left hand to prevent creepage. The aircraft became airborne approximately half-way down the runway, which is 5,730 feet in length According to the copilot, manifold pressure and RPM's remained constant, and engine performance was normal. At the captain's command to raise the landing gear, the copilot moved the handle into the retract position and noticed at this time that the aircraft, now airborne, was turning slightly to the left and the air speed indicator read approximately 85 miles per hour. With the left wing down and with but a few feet of altitude, the copilot, realizing an emergency existed, immediately applied emergency take-off power--55 inches manifold pressure However, the C-46, still turning, struck several small aircraft parked on the west side of the airport, and continued beyond the airport boundary, striking a fence and railroad embankment Both throttles were then closed by the captain, but the electrical system switches were not turned off. The aircraft came to rest beyond the embankment and about one-half mile west of the airport's west boundary on a heading of approximately 250 degrees. A fire developed immediately, but all passengers and crew were evacuated before it assumed major proportions. The aircraft was destroyed. The maximum indicated air speed attained in flight, approximately 100 MPH, was noticed by the captain shortly after the landing gear was retracted. The maximum altitude attained was estimated as 25 feet.