Скачать или смотреть The Crash Caused By A False Sense Of Security | RwandAir Flight 205

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This is the story of RwandAir flight 205, on the 12th of november 2009 at about 12 pm a CRJ 100 was on the ground at Kigali in Rwanda, this plane was going to carry 10 passengers and 5 crew members from Kigali to Entebbe in Uganda. The plane took off from runway 10 at 12:54 pm. During the takeoff roll they realized that the left hand engine was stuck . They could pull engine number two back to climb power but engine number one remained at 95% power no matter what they did.

To trouble shoot they entered a holding pattern above the airport, the first officer and a maintenance technician tried to troubleshoot the issue over the skies of kigali. But with no luck the captain decided to land back at kigali. They circled the airport as they lost airspeed and altitude. They had to go around on their first attempt, its not known why, maybe they were carrying too much speed. But on their second attempt the plane touched back down at kigali on runway 28. Once On the runway they braked hard, the left engine which was still stuck at max power didnt want the plane to stop, the brakes were working overtime and the tires on the left side deflated. But they eventually got the plane to slow down. The captain taxied the plane off the runway and to the parking bay. Once at the parking bay they stopped the plane and began to shut the right hand engine down. They had managed the crisis and their plane was back on the ground, they thought they were out of trouble but they weren't out of the woods yet.

In the cockpit the pilots were still trying to get the left hand engine to respond, they manipulated the throttles, but the engine still wouldn't budge, it was at max power. The pilots were still troubleshooting the issue, the captain wanted to get his passengers off the plane but since the left hand engine was running he wanted to use the galley exit. Then even though they had the brakes on the plane started rolling, here's a quote from the first officer “We landed safely and parked but the left trust lever could not be adjusted still. As we were trying to shut it down while holding on brakes, the plane started rolling again” end quote. The plane was moving again. They tried to stop the plane but it just wasn't happening the plane was rolling and there was nothing that they could do to stop it. The captain tried his best to turn the plane away from other planes on the ground. But eventually the plane crashed into the VIP terminal killing one person onboard.

A witness nearby described the plane as uncontrollable, within minutes fire trucks were at the scene and they fired water into the engine to shut it down. Rwandair flight 205 had ended in disaster.

This crash like most crashes has a few layers and so let's go through them one by one. Starting at the beginning we need to look at what went wrong with the engine. Once the plane was freed from the building they were able to examine the left hand engine. They found what was wrong, a strut was loose. The cowl or the cowling or the shell of the engine is held in place with the help of support struts. These struts are held in place using brackets and clips. But this strut had somehow worked itself free and was loose inside the engine. The was in this awkward place, it was near the fuel control unit. The fuel control unit as the name suggests controls the amount of fuel thats sent into the engine. When the throttles are advanced it sends more fuel into the engine and that gives you more thrust the opposite is also true. There's this arm that has to physically move to control the amount of fuel that's sent into the engine. But the strut impeded the movement of this arm, with the strut in the way the fuel control unit arm couldn't move that much and so the fuel supply was wide open. This meant that the lowest power setting that the engine could get to was 93%. But why did the strut come loose, the pla