Fly Quiet Adherence Report 3rd Quarter 2008

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Fly Quiet Adherence Report 3rd Quarter 2008 Chicago O Hare International Airport Visit the Community Resource Center on the Internet at http://www.flychicago.com

Departures 60% 50% Percentage of Use 40% 30% 20% 10% 0% 4L 4R 9R 10 14L 14R 22L 22R 28 27L 32L 32R 3rd Quarter 2008 5% 0% 14% 2% 0% 2% 23% 0% 4% 0% 46% 3% 3rd Quarter 2007 3% 0% 8% 5% 1% 3% 32% 0% 3% 0% 39% 6% 12 Month AVG 5% 0% 11% 3% 1% 2% 25% 0% 6% 0% 42% 5% Runway Arrivals 60% Percentage of Use 50% 40% 30% 20% 10% 0% 4L 4R 9R 10 14L 14R 22L 22R 28 27L 32L 32R 3rd Quarter 2008 0% 7% 2% 19% 1% 17% 0% 13% 24% 11% 6% 0% 3rd Quarter 2007 0% 23% 1% 11% 1% 26% 0% 13% 16% 1% 8% 0% 12 Month AVG 0% 9% 2% 17% 2% 17% 0% 11% 28% 9% 4% 0% Runway Source: Chicago Airport Noise Management System November 18, 2008 Page 1

All Airlines - Run-ups 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 174 83% 254 88% 214 88% 10 Hold Pad 0 0% 1 0% 1 0% 32L Hold Pad 35 17% 35 12% 28 12% Total 209 100% 290 100% 243 100% 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 27 66% 74 80% 39 77% 10 Hold Pad 0 0% 0 0% 1 1% 32L Hold Pad 14 34% 18 20% 11 22% Total 41 100% 92 100% 51 100% 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 24 96% 50 98% 43 98% 10 Hold Pad 0 0% 1 2% 0 0% 32L Hold Pad 1 4% 0 0% 1 2% Total 25 100% 51 100% 44 100% NWA 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 52 90% 73 94% 45 91% 10 Hold Pad 0 0% 0 0% 0 0% 32L Hold Pad 6 10% 5 6% 5 9% Total 58 100% 78 100% 50 100% 120% Location of Run-ups by Month Percentage 32L Pad Percentage 10 Pad Percentage GRE Trend Line - 10 Hold Pad Usage Trend Line -32L Hold Pad Trend Line - GRE Usage 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 44 85% 35 81% 40 82% 10 Hold Pad 0 0% 0 0% 0 1% 32L Hold Pad 8 15% 8 19% 9 18% Total 52 100% 43 100% 48 100% Others 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. 1 Location Run-ups Percentage Run-ups Percentage Run-ups Percentage GRE 27 82% 22 85% 47 93% 10 Hold Pad 0 0% 0 0% 0 1% 32L Hold Pad 6 18% 4 15% 3 7% Total 33 100% 26 100% 50 100% 1. 12 Month Average equals the average of 4Q 2007, 1Q 2008, 2Q 2008 and 3Q 2008. 2. Aircraft engine ground run-ups on the 10 Hold Pad are restricted until further notice. *Run-ups in unknown locations are not included in this report. Source: Chicago Department of Aviation, Ground Run-up Logs Percent Use 100% 80% 60% 40% 20% 0% 97% 96% 91% 93% 89% 86% 83% 85% 85% 83% 83% 82% 14% 18% 17% 18% 17% 15% 15% 9% 9% 6% 3% 3% 3% 1% 0% 1% 0% 0% 0% 0% 0% 0% 0% 0% Oct-07 Nov-07 Dec-07 Jan-08 Feb-08 Mar-08 Apr-08 May-08 Jun-08 Jul-08 Aug-08 Sep-08 November 18, 2008 Page 2

3rd Quarter 2008 3rd Quarter 2007 11 p.m. - 6 a.m. 11 p.m. - 6 a.m. Airline Departures Average Distance Departures Average Distance American Airlines 6 1.36 15 0.99 Asiana Airlines 3 1.62 2 1.03 Airborne Express 1 1.43 6 1.23 Air Canada 1 0.64 --- --- Air France 4 0.09 --- --- All Nippon Airways 1 0.37 2 0.43 Mesa Airlines/United Express 3 1.21 7 1.16 America West Airlines 7 0.82 --- --- Alitalia 1 0.53 --- --- Kalitta Air 1 2.07 1 0.28 Continental Airlines 2 2.05 --- --- Cathay Pacific 6 0.36 --- --- Evergreen 5 0.74 --- --- Federal Express 10 0.97 31 0.44 GoJet Airlines 1 0.55 1 0.62 Korean Air 3 0.95 1 0.34 Mexicana 23 0.58 12 0.33 Nippon Cargo Airlines 1 0.08 4 0.53 Polar Air Cargo 8 0.60 --- --- SkyWest/United Express 2 0.77 3 1.51 TACA 7 1.29 3 0.23 Shuttle America/United Express 1 2.01 6 0.62 United Airlines 22 1.10 42 1.21 UPS 4 1.12 7 0.46 US Airways 2 0.90 28 0.93 Overall 125 0.97 171 0.73 November 18, 2008 Page 3

100 28 Departures at 3,000 ft. MSL 3Q 2008 / 11 p.m. - 6 a.m. 75 Distribution Curve 50 62.2% 25 33.1% 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Average Distance 100 28 Departures at 3,000 ft. MSL 3Q 2007 / 11 p.m. - 6 a.m. 75 71.5% Distribution Curve 50 41.6% 25 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Average Distance Nighttime Hours 11 p.m. to 6 a.m.: In 3Q 2008, 33.1% of departures were within 1/2 nautical mile and 62.2% were within 1 nautical mile of the preferred flight track. In 3Q 2007, 41.6% of departures were within 1/2 nautical mile and 71.5% were within 1 nautical mile of the preferred flight track. November 18, 2008 Page 4

3rd Quarter 2008 3rd Quarter 2007 11 p.m. - 6 a.m. 11 p.m. - 6 a.m. Airline Departures Average Distance Departures Average Distance American Airlines 67 1.08 87 1.46 Asiana Airlines 66 0.44 51 0.35 Airborne Express 19 0.82 31 1.26 Air Canada 1 1.23 --- --- Air India 2 0.22 3 0.21 Air France 49 0.66 24 1.21 Aeromexico 6 0.24 --- --- All Nippon Airways 23 0.19 19 0.24 Air New Zealand 2 0.19 --- --- Alaksa Airlines 2 0.21 --- --- Mesa Airlines/United Express 42 0.89 29 1.41 America West Airlines 35 0.79 3 0.67 Alitalia 4 0.37 3 0.07 British Airways 6 0.33 2 0.22 BMI British Midland 1 0.01 --- --- ExpressJet/Continental Express 2 1.18 --- --- China Airlines 9 0.28 9 0.38 Air China Cargo 6 0.62 --- --- China Cargo Airlines 18 0.44 7 0.24 Kalitta Air 8 0.69 6 0.85 Cargolux 22 0.91 9 0.69 Continental Airlines 43 1.01 36 0.73 Comair/Delta Connection 3 0.52 1 0.19 Cathay Pacific 46 0.75 23 0.46 Delta Air Lines 6 0.89 2 0.23 DHL 3 0.99 9 2.10 Lufthansa 5 0.91 1 0.11 Evergreen 1 0.09 1 0.10 Aer Lingus 1 0.12 --- --- American Eagle 43 0.72 78 1.45 NetJets 2 0.36 4 0.05 EVA Airways 2 0.27 4 0.28 Federal Express 137 0.78 168 0.64 Lufthansa Cargo 4 0.27 21 1.24 GoJet Airlines 15 0.61 12 0.59 USA 3000 Airlines 3 0.95 1 0.01 Japan Airlines 38 0.25 52 0.26 Jetblue 4 0.63 3 1.87 Korean Air 35 0.41 22 0.47 Trans States/United Express 38 1.16 45 1.13 LOT Polish Airlines 4 0.30 5 0.43 Mexicana 57 0.38 50 0.40 Nippon Cargo Airlines 37 0.13 19 0.36 Northwest Airlines 58 0.33 74 0.39 Polar Air Cargo 25 0.22 17 0.92 Quantas Airways 19 0.36 14 0.23 Royal Jordanian 6 0.87 36 0.73 SAS 4 0.25 1 0.14 SkyWest/United Express 44 1.25 38 1.46 TACA 18 0.61 19 0.63 Shuttle America/United Express 17 1.02 25 1.57 United Airlines 169 0.93 226 1.29 UPS 15 0.60 20 1.38 US Airways 39 1.46 64 0.40 Overall 1,331 0.60 1,374 0.68 November 18, 2008 Page 5

400 32L Departures at 3,000 ft. MSL 3Q 2008 / 11 p.m. - 6 a.m. 300 72.9% Distribution Curve 200 100 60.5% 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Average Distance 1.8 2.0 2.2 2.4 2.6 2.8 3.0 600 32L Departures at 3,000 ft. MSL 3Q 2007 / 11 p.m. - 6 a.m. 500 400 300 64.4% Distribution Curve Distribution Curve 200 100 57.4% 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 Average Distance Nighttime Hours 11 p.m. to 6 a.m.: In 3Q 2008, 60.5% of departures were within 1/2 nautical mile and 72.9% were within 1 nautical mile of the preferred flight track In 3Q 2007, 57.4% of departures were within 1/2 nautical mile and 64.4% were within 1 nautical mile of the preferred flight track November 18, 2008 Page 6

Preferential Flight Tracks 11 p.m. - 6 a.m. Departures Note: Flights shown until 3,000 ft. MSL MDW November 18, 2008 Page 7

November 18, 2008 Page 8

Community¹ # of Complaints Percentage of Complaints # of Callers Percentage of Callers 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. ³ 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. ³ 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. ³ 3rd Quarter 2008 3rd Quarter 2007 12 Month Avg. ³ Arlington Heights 8 6 6 6% 3% 7% 2 2 2 3% 2% 4% Bensenville 2 3 1 1% 2% 1% 2 3 1 3% 3% 2% Bloomingdale 0 0 3 0% 0% 3% 0 0 2 0% 0% 5% Carol Stream 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Chicago 13 18 6 9% 10% 7% 8 11 4 11% 13% 8% Des Plaines 24 8 10 17% 4% 11% 12 8 6 17% 9% 14% Downers Grove 0 1 0 0% 1% 0% 0 1 0 0% 1% 0% Elk Grove Village 8 2 3 6% 1% 4% 5 2 2 7% 2% 5% Elmhurst 11 71 14 8% 39% 15% 4 20 6 6% 23% 13% Elmwood Park 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Franklin Park 2 16 6 1% 9% 6% 2 10 3 3% 12% 6% Glenview 1 0 1 1% 0% 1% 1 0 1 1% 0% 1% Harwood Heights 11 0 4 8% 0% 4% 2 0 1 3% 0% 2% Hillside 5 4 5 3% 2% 5% 2 1 2 3% 1% 3% Hinsdale 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Hoffman Estates 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Inverness 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Itasca 3 1 2 2% 1% 2% 1 1 1 1% 1% 3% Lake Zurich 0 0 0 0% 0% 0% 0 0 0 0% 0% 1% Lombard 3 3 1 2% 2% 1% 3 2 1 4% 2% 2% Medinah 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Melrose Park 4 8 7 3% 4% 7% 2 3 1 3% 3% 3% Mount Prospect 0 2 0 0% 1% 0% 0 2 0 0% 2% 1% Niles 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Norridge 5 0 3 3% 0% 3% 2 0 1 3% 0% 3% Northlake 0 1 0 0% 1% 0% 0 1 0 0% 1% 0% Oak Park 1 1 0 1% 1% 0% 1 1 0 1% 1% 1% Palatine 0 2 1 0% 1% 1% 0 2 1 0% 2% 1% Park Ridge 8 7 3 6% 4% 4% 7 7 3 10% 8% 6% River Forest 1 1 1 1% 1% 1% 1 1 1 1% 1% 1% River Grove 2 0 1 1% 0% 1% 1 0 0 1% 0% 1% Rolling Meadows 0 9 2 0% 5% 2% 0 1 1 0% 1% 2% Roselle 20 0 6 14% 0% 6% 3 0 1 4% 0% 3% Rosemont 2 0 1 1% 0% 1% 1 0 1 1% 0% 1% Schaumburg 0 0 0 0% 0% 0% 0 0 0 0% 0% 0% Schiller Park 6 3 4 4% 2% 4% 5 2 3 7% 2% 6% Wood Dale 0 0 1 0% 0% 1% 0 0 1 0% 0% 1% Other² 3 13 3 2% 7% 3% 3 5 2 4% 6% 4% Total 143 180 90 100% 100% 100% 70 86 45 100% 100% 100% 1. Only includes calls made from the State of Illinois. 2. Other: Barrington, Lincolnwood and Westmont. 3. 12 Month Average equals average of 4Q 2007, 1Q 2008, 2Q 2008 and 3Q 2008. Source: Chicago Airport Noise Management System November 18, 2008 Page 9

Legend Location of Nighttime Noise Complaints 3 rd Quarter 2008 Nighttime Complaint Locations: 3 rd Quarter 2007 Nighttime Complaint Locations: Note: Not all callers are located due to lack of address information or are located outside the extent of the map. November 18, 2008 Page 10

3rd Quarter 2008 3rdQuarter 2007 12 Month Average Noise Monitor Community Aircraft Leq 1 Community Leq 1 Aircraft Leq 1 Community Leq 1 Aircraft Leq 1 Community Leq 1 1 Arlington Heights 52.9 53.7 53.3 52.9 52.7 53.2 2 Melrose Park 49.2 53.1 48.7 53.0 47.3 52.1 3 Bensenville 51.2 57.4 57.6 70.0 49.8 56.7 4 Schiller Park 50.6 57.9 55.0 58.1 52.0 56.8 5 Chicago 51.1 56.1 49.1 53.8 49.7 53.7 6 Chicago 49.3 54.2 47.7 57.0 47.8 --- 7 Des Plaines 49.0 53.4 50.6 52.3 49.1 53.1 8 Des Plaines 55.8 55.2 53.5 55.2 52.4 55.2 10 Rolling Meadows 52.1 57.1 50.8 56.1 52.2 54.6 11 Chicago 48.1 56.3 49.2 52.2 46.5 53.5 12 Elk Grove 64.2 74.3 65.8 69.6 58.4 70.0 13 Elk Grove 67.8 63.3 68.7 73.1 66.9 74.8 14 Elk Grove 55.0 54.5 55.4 54.5 54.4 53.7 15 Franklin Park 51.5 55.3 53.4 55.0 50.7 54.8 16 Franklin Park 60.1 65.3 69.0 77.5 62.2 80.7 17 Harwood Heights 57.2 57.4 54.7 55.1 57.1 58.1 19 Stone Park 50.1 55.4 50.9 55.8 48.4 55.3 20 Mount Prospect 52.2 52.1 53.6 51.9 52.3 51.9 21 Mount Prospect 47.3 48.1 47.8 48.8 45.7 47.2 22 Norridge 58.6 57.5 56.5 52.3 58.4 55.6 23 Northlake 54.9 56.3 56.7 55.6 53.2 56.4 24 Park Ridge 46.4 53.3 47.1 51.6 44.8 50.5 25 Park Ridge 51.2 56.2 50.4 55.1 53.5 60.2 26 Park Ridge 48.1 51.0 52.8 64.0 52.0 75.7 27 Rosemont 56.9 60.8 56.3 59.7 53.9 60.0 28 Schiller Park 69.6 65.7 66.4 63.1 69.4 66.0 32 Wood Dale 49.6 54.6 49.3 53.5 50.3 54.0 34 Elk Grove 48.6 56.8 49.6 61.1 50.9 65.2 35 Unincorp. Cook 54.3 57.0 53.9 54.2 51.8 56.0 37 Mount Prospect 44.0 53.4 42.4 54.6 43.4 50.6 1. Leq (Equivalent Sound Level): The average sound energy level during a stated period of time. Red represents an increase of 1 db or more from same quarter previous year (10 monitors). Green represents a decrease of 1dB or more from same quarter previous year (11 monitors). Source: Chicago Airport Noise Management System November 18, 2008 Page 11