4th Grade Reading Comprehension (Set 2) - Engines

_____The engines of a jet airliner in flight make quite a bit of noise. People flying on the plane get used to the noise, but they would quickly notice if the noise stopped while they were in the air. This really did happen.
_____At an ALTITUDE of 33,000 feet above the Atlantic Ocean, one of the jet’s engines seemed to have a problem and the pilot shut it down. A jet can fly very well if one of its engines isn’t working. A little while later, however, another engine developed trouble and this one stopped on its own. Then the third engine stopped and there were none.
_____The jet started gliding slowly toward the sea, like a gull at dinner time. The passengers on the plane had already eaten dinner, and they did not want to head toward the sea. They were frightened. The pilot of the plane managed to stay calm. He knew that he would be in big trouble if he didn’t get at least one engine going again fast. Fortunately he was able to get the engine that he had shut off first to start again. The plane landed safely, and the passengers all applauded loudly for the pilot.
_____Why had the plane’s engines all stopped? Between flights, planes are checked out very carefully. More fuel is added and sometimes small parts are changed. The last time this plane had been checked, a small part was taken out of each engine for changing. The person doing that forgot to put the new part in. That’s why the engines failed. The airline said that person was given a new job to do and isn’t checking engines anymore.