Illinois

The four engine airplane departed Kenneth Ingalls Sawyer AFB on a flight to Chicago-O'Hare Airport, carrying 23 passengers and a crew of four. After being cleared to descend from 22,000 feet to 8,000 feet, the crew reduced his speed when at an altitude of 13,700 feet, at a speed of 313 knots, the airplane suffered an in-flight explosion. Both wings detached, all four engines separated as well as the stabs and out of control, the airplane dove into the ground and crashed in an open field located in Greenwood, about 37 miles northwest of Chicago Airport. The aircraft was totally destroyed and all 27 occupants were killed.

During initial approach to DuPage Airport while on flight from Sioux Center, Iowa, the twin engine airplane stalled and crashed in St Charles, few miles from the airfield. The pilot and a passenger were killed while three other passengers were seriously injured.

The crew (one engineer and two pilots) departed Aurora-Sugar Grove for a local post maintenance test flight. While approaching the airport in poor weather conditions with limited visibility due to freezing fog, both engines lost power as the induction systems were iced. The crew attempted an emergency landing when the airplane crashed. All three occupants were seriously injured.

After takeoff from Chicago-Midway Airport, on a cargo flight to Bloomington via Peoria, the pilot encountered a loss of power on the left engine. The pilot attempted to return for an emergency landing when the airplane entered a tight turn, lost height, struck trees and crashed in a wooded area, bursting into flames. The pilot, sole on board, was killed.

The airplane was unable to takeoff from Chicago-Merrill C. Meigs Airport runway 18, overran and crashed into Lake Michigan. A pilot and a passenger were killed while four other occupants were seriously injured. The aircraft came to rest in 25 feet of water about 300 feet past the runway end.

The pilot was completing a positioning flight to Chicago-Merrill C. Meigs Airport and while descending, he encountered poor weather conditions with low ceiling, fog and limited visibility. He lost control of the airplane that crashed into Lake Michigan. Few debris were found while the main wreckage was not recovered. Both occupants were presumed dead.

American Airlines Flight 191, a McDonnell-Douglas DC-10-10, crashed on takeoff from Chicago-O'Hare International Airport, Illinois, USA. The aircraft was destroyed and all 271 occupants were killed. Additionally, two persons on the ground sustained fatal injuries. At 14:59 hours local time Flight 191 taxied from the gate at O'Hare Airport. The flight was bound for Los Angeles, California, with 258 passengers and 13 crew members on board. Maintenance personnel who monitored the flight's engine start, push-back, and start of taxi did not observe anything out of the ordinary. The weather at the time of departure was clear, and the reported surface wind was 020° at 22 kts. Flight 191 was cleared to taxi to runway 32R for takeoff. The company's Takeoff Data Card showed that the stabilizer trim setting was 5° aircraft nose up, the takeoff flap setting was 10°, and the takeoff gross weight was 379,000 lbs. The target low pressure compressor (N1) rpm setting was 99.4 percent, critical engine failure speed (V1) was 139 kts indicated airspeed (KIAS), rotation speed (VR) was 145 KIAS, and takeoff safety speed (V2) was 153 KIAS. Flight 191 was cleared to taxi into position on runway 32R and hold. At 15:02:38, the flight was cleared for takeoff, and at 15:02:46 the captain acknowledged, "American one ninety-one under way." The takeoff roll was normal until just before rotation at which time sections of the No.1 (left) engine pylon structure came off the aircraft. Witnesses saw white smoke or vapor coming from the vicinity of the No. 1 engine pylon. During rotation the entire No. 1 engine and pylon separated from the aircraft, went over the top of the wing, and fell to the runway. Flight 191 lifted off about 6,000 ft down runway 32R, climbed out in a wings-level attitude. About nine seconds after liftoff, the airplane had accelerated to 172 knots and reached 140 feet of altitude. As the climb continued, the airplane began to decelerate at a rate of about one knot per second, and at 20 seconds after liftoff, and an altitude of 325 feet, airspeed had been reduced to 159 knots. At this point, the airplane began to roll to the left, countered by rudder and aileron inputs. The airplane continued to roll until impact, 31 seconds after liftoff, and in a 112-degree left roll, and 21-degree nose down pitch attitude. At 15:04 Flight 191 crashed in an open field and trailer park about 4,600 ft northwest of the departure end of runway 32R. The aircraft was demolished during the impact, explosion, and ground fire. The No.1 engine pylon failure during takeoff was determined to have been caused by unintended structural damage which occurred during engine/pylon reinstallation using a forklift. The engine/pylon removal and reinstallation were being conducted to implement two DC-10 Service Bulletins. Both required that the pylons be removed, and recommended that this be accomplished with the engines removed. The Service Bulletin instructions assumed that engines and pylons would be removed separately, and did not provide instructions to remove the engine and pylon as a unit. Additionally, removal of the engines and pylons as a unit was not an approved Maintenance Manual procedure. The lack of precision associated with the use of the forklift, essentially an inability to perform the fine manipulations necessary to accomplish reinstallation of the engine/strut assembly, in combination with the tight clearances between the pylon flange and the wing clevis resulted in damage to the same part that had just been inspected. Inspections of other DC-10 pylon mounts following the accident resulted in nine additional cracked mounts being identified.

At liftoff, the twin engine airplane stalled and crashed in flames. The pilot, sole on board, was injured. He was en route to Indianapolis.

After takeoff from Wheeling-Palwaukee Airport, while climbing, the pilot declared an emergency after an explosion on the left engine. He was cleared to return for an emergency landing and continued the approach when, upon touchdown, the airplane went out of control and crashed in flames. The pilot, sole on board, was killed.

Shortly after takeoff from Savoy-Willard Airport, while climbing, the airplane suffered an engine failure. The pilot lost control of the airplane that crashed in an open field located near Champaign. The aircraft was totally destroyed and all six occupants were killed.