American Airlines Flight 191 Essay

679 Words2 Pages

I. Summary
On May 25, 1979 about 1504 c.d.t, American Airlines Flight 191 McDonnell-Douglas

DC-10-10 aircraft crashed into an open field shortly after take-off from Chicago O'Hare, killing

all 271 aboard and 2 on the ground TSGC, (n.d) During takeoff, the left engine and strut

assembly along with three feet of the leading-edge wing separated from and fallen off the wing.

The pylon separation severed hydraulic lines, causing the loss of hydraulic pressure and

retraction of all the slats outboard of the left engine and loss of electrical power powered by that

engines electrical generator (Admin, n.d).

II. Problem
The irregular stall and the consequent roll of the aircraft from the un-commanded

retraction of the left wing outboard leading edge slats and the loss of stall warning and slat

indication systems. This resulted from maintenance-induced damage leading to the separation of

the no.1 …show more content…

IV. Development of Alternative Actions
Alternative Action 1. Develop a procedure when removing the engine and pylon assembly as a unit while making sure it works by evaluating and making any changes necessary to have and damage happening during the task. Advantages. Following tech data and ensuring a proper maintenance procedures are followed and tested makes sure for safety of flight and people working. Disadvantages. Trying to increase efficiency is not always the best route to go. Being that American Airlines did not conduct an evaluation to ensure no risks would happen to the pylon structure.
Alternative Action 2: Have the FAA be more involved in the maintenance tasks. Advantages. When the FAA is more involved with important tasks like engine/strut change procedures, it would help in identifying and overseeing and possibly notify engineering of what processes may need to be addressed in vital tasks like this and incorporate maintenance accidents to be

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