md11lover- The flight out of ORD
that your talking about was American Airlines Flight 191. It happend May 25 1979. Everyone on board was gone including 3 on the ground. 278 people lost there lives in that deal. It was caused from the Maintnace guys at AA
. They where doing a #1 engine change on the DC-10 and while they where in the middle of the change they mounted the engine on the pylon and didnt fully hang it right before the guys went to lunch. While the guys where on lunch the weight of the engine moved the pylon so much that it crached the hydrolic hose for the outboard slat. The plan was bound for LAX
when it took off of 32R out of ORD
. The #1 engine fell off the wing on TO
. Since the hydrolic hose was broke for the outboard slat once they where deploid in the down position there wasnt any pressure left (from the hydrolic fluids running out) to hold the slat down. Therefore once there was any pressure against the slat it would just retract. When the plane was airborne the slat was pushed back in normal up postion and the left wing didnt have as much lift as the right wing. Once it was about 300ft AGL the left wing dipped and the plane ended up upside down in the ground. There are 2 really good pictures of this bird going down somewhere around here. Someone posted them not to long ago. McDouglas did put and AD
out on the DC-10 for them to have some sort of locking pins in the Slats that way it wont retract with out the hydrolics working. I know the inside story behind this accident because my father still works with 2 guys that where working at the AA
hangers that day the airplane was getting the engine service done. So really this crash didnt have anything to do with a flight test or anything, just a maintnace error and a design flaw.