The O’Hare Noise Compatibility Commission (ONCC) Fly Quiet Committee met on Friday, March 22, 2019 at the Chicago Department of Aviation (CDA) Administration Building in Chicago, IL. View Packet/Materials

Committee Chair Joseph Annunzio called the meeting to order at 9:30 a.m. Ms. Catherine Dunlap moved to approve the February 19, 2019 meeting minutes. Mr. Dennis Ryan seconded the motion. The minutes were approved by a unanimous voice vote.

Old Business

a. Follow Up on Operational Questions
Mr. Ryan Anderson of Landrum & Brown told the committee that there are two outstanding items remaining to be answered by the FAA and he believed that after the discussion today there would be enough information available for the FAA to respond.

b. Fly Quiet 21 Process Review
Under the current Fly Quiet 21 process, the committee is at the Develop Alternatives stage. The committee reviewed a chart that will facilitate the process to review and revise alternatives, which should result in a better way to package the Fly Quiet 21 request to the FAA for environmental review.

The committee reviewed the three categories:

    • preferential runways
    • departure procedures
    • program coordination
New Business

Ground Movement During Fly Quiet

The committee learned that ground movement, especially in the north airfield would impact the decisions on preferential runways and taxiways during the Fly Quiet hours. American and United airlines both have maintenance facilities in the north airfield and the Ground Run-up Enclosure is also located there. The movement of aircraft and maintenance equipment from the terminals to the maintenance facilities would be a safety issue for preferential runways on the north airfield.
The committee discussed three factors that would impact rotation configurations for Fly Quiet 21:
    • Ground Run-Ups, a full engine run up in the Ground Run-up Enclosure (the first to open in the United States) He explained ground run-ups need good air flow and at times during weather conditions the diagonal Runway 4L/22R could also be used as an alternative.
    • Intersection Departures mean the pilot does not use the full length of the runway on departure, especially on the south airfield where the runways are longer.
    • Land and Hold Short Operations (LAHSO), on arrivals the aircraft landing or holding short of an intersecting runway. This is voluntary, and some airlines do not allow this procedure. The procedure allows the aircraft to exit at an earlier taxiway. United and American do not allow this procedure at O’Hare.

Next Steps
CDA consultants said the next steps would include options with stakeholders and finalize feasible runway configurations. The CDA shared that the FAA flagged some configurations, however the factors are built in and influencing the configurations.

CDA consultants reminded the committee that there are 50 plus aircraft crossings per evening to get to the maintenance facilities and back to terminals. It would be and is a safety issue. Fly Quiet has a limited air traffic crew in place and workload has to be considered.

The CDA and consultants plan to meet with air traffic control, CDA maintenance and airline carriers to discuss the feasibility for runway rotation configurations especially in the north airfield. There are no ground run-ups in the south airfield.

Chairman Annunzio said that he hoped the committee would see feasible configurations at the next meeting.

Next Meeting
The next Fly Quiet Committee Meeting will be held on Tuesday, April 23, 2019 at 9:30 a.m. at the CDA Administration Building.

Comments from the Audience
Mayor Arlene Juracek, ONCC Chair, complemented the core group of people working on the feasibility issues and aircraft noise impacts. She said the committee has the intellectual capability to say why they reached the configurations selected and why some were not feasible.

The meeting adjourned at 10:42 a.m.