Plans to dismantle a runway are on hold while city officials meet with residents angry about jet noise.
The results will be shared with city officials at three upcoming meetings, group leaders said.
The flight tracker app gives residents a way to see all of the planes swirling in Chicago's skies.
City officials got 100,000 more complaints in April than in March, officials said.
Reporter Heather Cherone stopped by the Fox 32 Chicago studios to discuss the day's top stories.
Meetings will take place before the runway is dismantled, according to the agreement.
Ginger Evans was picked by Mayor Rahm Emanuel to lead the Chicago Department of Aviation.
The change would have a "negligible" impact on the ability of planes to use the runway, officials said.
A study will determine how much jet noise actually impacts those who live in the flight path.
"Obviously, the level of frustration is high," the chairwoman of the O'Hare noise comssion said.
The reconstruction is part of a $2.5 billion project to rebuild and widen the Jane Addams Expy.
Mayor Emanuel asked federal officials to double the number of public meetings about a new O'Hare runway.
Two bills pending in the Illinois House are designed to reduce jet noise over the Far Northwest Side.
Jesus "Chuy" Garcia tried to capitalize on anger about jet noise to win over voters in four wards.
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