Washington DC

The airplane departed Washington-National Airport bound for Birmingham, Alabama. Four minutes later, while climbing to an altitude of 9,300 feet, monitoring radar stations lost continuous reception of the aircraft's primary and secondary radar target information. Shortly thereafter, ground witnesses saw an explosion in the sky followed by the wreckage of the aircraft falling to the ground. the sky was overcast and light rain was falling. The four persons aboard were killed and the aircraft was destroyed. One residence and two automobiles were destroyed by impact and fire and several other homes were damaged by falling debris.

While descending to Newport News-Williamsburg Airport on a schedule flight from Washington DC, the right engine failed. The crew lost control of the airplane that entered a dive and crashed into the sea off Hampton, about 12,5 miles southeast of the airport. The aircraft was lost and all four occupants were killed (the copilot's body was never recovered).

During the takeoff roll on runway 17 at Grand Prairie-Hensley Field NAS, the pilot-in-command elected to takeoff but this was impossible due to an incorrect trim setting. As the aircraft unrotated, the crew decided to attempt an emergency braking procedure but the aircraft was unable to stop within the remaining distance. It overran runway 17, collided with a fence and eventually came to rest into the Mountain Creek Lake. All five occupants were injured, both pilots seriously.

On a VOR/DME approach to Washington-National Airport, the crew encountered low clouds and failed to realize his altitude was insufficient. On final, the twin engine airplane struck a radio antenna. Upon impact, the left wing was torn off and the aircraft crashed in flames in the garden of the American University campus. The aircraft was destroyed by impact forces and a post crash fire and all five occupants were killed.

Flight UA553 departed Washington-National Airport at 1250LT for Omaha with an intermediate stop at Chicago-Midway Airport. Chicago ARTCC cleared the crew to descend to 4000 feet and the flight was given vectors for a Midway Airport runway 31L localizer course. At 14:19 the flight was transferred to Chicago Approach Control which later requested UA553 to slow down to 180 knots and later down to 160 knots. After issuing a descent clearance down to 2000 feet at 14:23 the controller requested the flight to slow down to approach speed because of separation between UA553 and a preceding Aero Commander. At 14:24 the Aero Commander passed the Outer Marker and was cleared to land on runway 31L. Two minutes later UA553 passed the Outer Marker inbound. Then, at 14:27:04 the air traffic controller decided to issue a missed approach clearance: "United 553 execute a missed approach make a left turn to a heading of 180 climb to 2000". At the same time, having just reached 1000 feet, the stick shaker suddenly activated. Full power was applied and the gear was retracted in an attempt to execute a missed approach. The Boeing continued to descend however, attaining a high nose up attitude (of at least 30deg, according to some survivors). The aircraft then clipped a tree and impacted trees, houses, utility pole cables and garages before coming to rest. Post crash fire destroyed part of the fuselage.

At liftoff from Binghamton-Broome County Airport, the twin engine airplane encountered serious difficulties to gain height. Suddenly, it stalled and crashed in flames in an open field located near the airport. A pilot and two passengers were killed while eight other occupants were seriously injured.

On approach to Weyers Cave-Shenandoah Valley Airport, the crew informed ATC that both engines failed and that he was unable to maintain the prescribed altitude. Shortly later, the aircraft struck a hill located few miles from the airfield, probably as the crew was trying to make an emergency landing. The aircraft was destroyed upon impact and both pilots were killed.

The aircraft departed Elmira-Corning Airport at 1439LT on a schedule flight to Washington-National Airport, carrying 30 passengers and a crew of four. After takeoff, the crew was cleared to climb to FL160 when the airplane went into a nose-down attitude, plunged into the earth and crashed in a huge explosion in a wooded area located one mile east of Blossburg, Pennsylvania. The aircraft disintegrated on impact and none of the 34 occupants survived the crash.

The crew was completing a local test flight at Washington-Dulles Airport. Upon landing, the nose gear collapsed and the airplane slid for several yards before coming to rest. All eight occupants were uninjured while the aircraft was considered as damaged beyond repair.

A United Air Lines, Inc., Vickers Viscount 745D, N7405, Flight 823, crashed 2-1/4 rules northeast of Parrottsville Tennessee, at 1815 e.s.t., July 9, 1964. Thirty-four passengers and the four crew members died in the crash. One passenger died of injuries following a free fall from the aircraft before the crash. The aircraft was destroyed by fire and impact damage. Flight 823 was a regularly scheduled operation from Philadelphia, Pennsylvania, to Huntsville, Alabama, with en route stops at Washington, D. C., and Knoxville, Tennessee. The flight operated without any reported discrepancies or difficulties until approximately 1810 e.s.t., when it was observed flying at low altitude trailing smoke. The flight continued in a southwesterly direction and at a point approximately 1.6 nautical rules before the impact site, a passenger was seen falling from the aircraft, and a short time later a cabin window was seen falling. The aircraft was then observed going into a nose-high attitude, the left wing and the nose went down, and the aircraft dived into the ground, exploded, and burned.