Incident
To reduce radio congestion and consequences resulting from pilot or controller error, airports with a large number of operations will typically split the tower (local) controller into two or more positions. This was the case that evening when each of the incident flights were the responsibility of different controllers. The local control west controller was responsible for Aer Lingus flight 132 and the local control east controller was responsible for US Airways flight 1170.
At 19:39:10, Aer Lingus flight 132 was cleared for takeoff from runway 15R by local control west. Five seconds later, local control east cleared US Airways flight 1170 for takeoff from runway 9 which intersects with runway 15R; the aircraft had essentially been sent on a collision course. With the airport terminals between the two aircraft as the takeoffs began, the flight crews could not initially see each other.
During the take-off roll, the US Airways first officer noticed the other plane and realized that they could collide. He realized that at the runway intersection both aircraft would be slightly airborne. Telling the Captain to "Keep it down", he pushed the control column forward. In this way he was able to keep US Airways 1170 from lifting off the runway, allowing it to reach the intersection and pass under the other aircraft as it took off. The two planes passed within an estimated 70 feet (21 m) of each other, with the Aer Lingus aircraft flying over the US Airways aircraft. Since (according to the NTSB report) the US Airways flight had already achieved its V1 speed and could no longer safely abort takeoff, the flight crew continued down the runway and lifted off after passing through the intersection.
Read more about this topic: 2005 Logan Airport Runway Incursion
Famous quotes containing the word incident:
““It is of the highest importance in the art of detection to be able to recognise out of a number of facts which are incidental and which are vital.... I would call your attention to the curious incident of the dog in the night-time.”
“The dog did nothing in the night-time.”
“That was the curious incident.””
—Sir Arthur Conan Doyle (1859–1930)
“Every incident connected with the breaking up of the rivers and ponds and the settling of the weather is particularly interesting to us who live in a climate of so great extremes. When the warmer days come, they who dwell near the river hear the ice crack at night with a startling whoop as loud as artillery, as if its icy fetters were rent from end to end, and within a few days see it rapidly going out. So the alligator comes out of the mud with quakings of the earth.”
—Henry David Thoreau (1817–1862)
“In the extent and proper structure of the Union, therefore, we behold a republican remedy for the diseases most incident to republican government.”
—James Madison (1751–1836)