Crash Site of American Airlines Flight 191
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World / United States / Illinois
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On May 25th, 1979 American Airlines Flight 191 crashed at this location shortly after takeoff from Chicago O'Hare International Airport, killing all 271 passengers and crew aboard the aircraft as well as two people on the ground.
Operating as Flight 191 from Chicago to Los Angeles International Airport, Douglas DC-10-10 N110AA pushed back from Gate K5 at 1450hrs and taxied without incident to Runway 32R where the flight was cleared for takeoff. Starting its takeoff roll at 1502hrs, the DC-10 was approximately halfway down the runway and nearing its V1 speed when a series of bolts attaching the #1 Engine and pylon to the left wing snapped, allowing the fully-powered engine to completely detach from the aircraft and roll upwards over the left wing and onto the runway. Warning lights and indicators in the cockpit alerted the flight crew to the loss of power in the #1 Engine but likely did not give any indication that the engine had in fact fallen off the aircraft or had taken a three foot piece of the left wings leading edge with it.
In accordance with standard procedure the crew continued their takeoff and made the necessary preparations for two-engine flight, but as the DC-10 climbed off the runway and the pilot in command began to reduce speed, the steady loss of hydraulic pressure to leading edge slats on the left wing caused the outermost set to retract under the air load. Unaware the left wing was losing surface area and increasing its stall speed, the flight crew continued to slow down the aircraft until the entire left wing entered a full aerodynamic stall at 159 knots. With no lift being provided by the engineless left wing, the lift and thrust provided by the right wing and engine immediately rolled the DC-10 into an unrecoverable 112-degree banking dive to the left which sent the aircraft plummeting from approximately 400ft in altitude into the ground at this location.
Investigations carried out by the NTSB into the crash of Flight 191 would later find that the lack of a locking mechanism on the aircrafts’ leading edge slats to keep them deployed in the event of hydraulic failure contributed heavily to the crash, as the DC-10 would likely have been able to safely return to the airport on two engines had it not experienced a full stall on its left wing. Furthermore, the investigation found that improper maintenance procedures by American Airlines staff had led to damage of the attachment bolts holding the #1 engine to the wing, leading to its separation from the aircraft and the resultant damage to the wing and its hydraulic systems.
The crash of American Airlines Flight 191 remains the deadliest single-aircraft accident in US history, and after 30 years of attempts to memorialize the disaster at the crash site a group of schoolchildren from Decatur Classical School succeeded in raising funding and obtaining a passenger list from American Airlines in 2009. Today, a 2ft concave wall with interlocking bricks displaying the names of the crash victims marks the crash site and was formally dedicated in a ceremony on October 15, 2011.
www.airdisaster.com/investigations/aacrash.shtml
libraryonline.erau.edu/online-full-text/ntsb/aircraft-a...
Operating as Flight 191 from Chicago to Los Angeles International Airport, Douglas DC-10-10 N110AA pushed back from Gate K5 at 1450hrs and taxied without incident to Runway 32R where the flight was cleared for takeoff. Starting its takeoff roll at 1502hrs, the DC-10 was approximately halfway down the runway and nearing its V1 speed when a series of bolts attaching the #1 Engine and pylon to the left wing snapped, allowing the fully-powered engine to completely detach from the aircraft and roll upwards over the left wing and onto the runway. Warning lights and indicators in the cockpit alerted the flight crew to the loss of power in the #1 Engine but likely did not give any indication that the engine had in fact fallen off the aircraft or had taken a three foot piece of the left wings leading edge with it.
In accordance with standard procedure the crew continued their takeoff and made the necessary preparations for two-engine flight, but as the DC-10 climbed off the runway and the pilot in command began to reduce speed, the steady loss of hydraulic pressure to leading edge slats on the left wing caused the outermost set to retract under the air load. Unaware the left wing was losing surface area and increasing its stall speed, the flight crew continued to slow down the aircraft until the entire left wing entered a full aerodynamic stall at 159 knots. With no lift being provided by the engineless left wing, the lift and thrust provided by the right wing and engine immediately rolled the DC-10 into an unrecoverable 112-degree banking dive to the left which sent the aircraft plummeting from approximately 400ft in altitude into the ground at this location.
Investigations carried out by the NTSB into the crash of Flight 191 would later find that the lack of a locking mechanism on the aircrafts’ leading edge slats to keep them deployed in the event of hydraulic failure contributed heavily to the crash, as the DC-10 would likely have been able to safely return to the airport on two engines had it not experienced a full stall on its left wing. Furthermore, the investigation found that improper maintenance procedures by American Airlines staff had led to damage of the attachment bolts holding the #1 engine to the wing, leading to its separation from the aircraft and the resultant damage to the wing and its hydraulic systems.
The crash of American Airlines Flight 191 remains the deadliest single-aircraft accident in US history, and after 30 years of attempts to memorialize the disaster at the crash site a group of schoolchildren from Decatur Classical School succeeded in raising funding and obtaining a passenger list from American Airlines in 2009. Today, a 2ft concave wall with interlocking bricks displaying the names of the crash victims marks the crash site and was formally dedicated in a ceremony on October 15, 2011.
www.airdisaster.com/investigations/aacrash.shtml
libraryonline.erau.edu/online-full-text/ntsb/aircraft-a...
Wikipedia article: http://en.wikipedia.org/wiki/American_Airlines_Flight_191
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Coordinates: 42°0'36"N 87°55'44"W
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