| 1. | Dooley's technicians centered in on a radar blip that might be Flight 11.
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| 2. | And aircrafts'primary radar blips sometimes disappear into clutter, caused by birds or other interference.
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| 3. | The radar blips were colossal waves rising up from the surface of the ocean.
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| 4. | At about 6 : 40 p . m ., radar blips of both aircraft were lost.
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| 5. | Controllers see planes passing each other at different altitudes as two radar blips converging, then diverging.
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| 6. | Suddenly, he said at a new conference, " the radar blip of both aircraft was lost ."
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| 7. | He turned to weather forecasting and became proficient at interpreting Doppler radar blips and analyzing climate patterns.
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| 8. | With that identification, the controller could then type in next to that radar blip " AA123 ."
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| 9. | With lower-flying, slower aircraft, recognizing and tracking an aircraft by its radar blips was a straightforward process.
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| 10. | Suddenly, " the radar blip of both aircraft was lost, " he said at a new conference.
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मोबाइल