At the bustling Chicago O'Hare International Airport, every aircraft movement carries significant operational weight. This comprehensive guide outlines critical upgrades to enhance flight safety and operational efficiency for pilots and air traffic controllers.
1. Key Airport Operational Information
- A1 SA5 (where equipped): Activated across all airport surfaces to ensure ground operation safety.
- Altitude Reporting Mode and ADS-B ASDE-X: Enhanced airspace surveillance capabilities for improved situational awareness.
- Transponder Operations: Standardized procedures to ensure accurate and timely air-ground communications.
2. Runway Strength and Friction Coefficient Analysis
Runway conditions directly impact flight safety. Below are detailed specifications for each runway:
| Runway | Strength Codes | PCR Value | Surface Condition |
|---|---|---|---|
| 09C-27C, 09R-27L | S-120, D-250, 2D-550, 2D/2D2-1118 | 1180 | R/C/W/T |
| 04R-22L | S-120, D-250, 2D-550, 2D/2D2-1118 | 1180 | R/C/W/U |
| 04L-22R | S-120, D-250, 2D-550, 2D/2D2-1118 | 1180 | R/C/W/T |
| 10C-28C | S-120, D-243, 2D-392, 2D/2D2-891 | 800 | R/C/W/U |
Key to Specifications:
- Strength Codes: Indicate weight-bearing capacity (higher values accommodate heavier aircraft)
- PCR Values: Measure surface friction (higher values indicate better braking conditions)
- Surface Codes: R = Dry, C = Damp, W = Wet, T = Standing Water, U = Uneven Water
3. Critical Operational Procedures
- Mandatory Runway Hold Instruction Readbacks: Ensures mutual understanding between pilots and controllers to prevent runway incursions.
- Runway Crossing Vigilance: Requires explicit confirmation of clearance and environmental awareness during crossings.
- Midfield Area Caution: High-traffic zone requiring heightened situational awareness.
- Airport Elevation: 680 feet MSL - essential reference for approach and departure procedures.
4. Magnetic Variation Data
- Current Variation: 3.9° West
- Annual Change: 0.0° West (through January 2025)
5. Essential Communication Frequencies
| Function | Frequency |
|---|---|
| PDC/CPDLC | 121.675 |
| Ground Control (Metering) | 121.6 |
| Clearance Delivery | 226.675, 124.125 (TWR NORTH) |
| Tower (Various Sectors) | 121.9, 121.75, 118.05 |
6. Airport Infrastructure Overview
Key Facilities:
- Deicing Areas: Centralized locations for efficient operations
- Ramps: Multiple pads serving cargo, general aviation, and commercial operations
- Fire Stations: Four strategically located stations
7. Runway Specifications
| Runway | Dimensions | Elevation |
|---|---|---|
| 10R-28L | 7,500' × 150' | 668' |
| 9C-27C | 11,245' × 200' | 673' |
| 10C-28C | 13,000' × 150' | 672' |
8. LAHSO Information
- Participating Runways: 10R28L, 9L27R, 4L22, 9C27C, 9R27L, 10C28C, 10L28R
- Standard Distance: 7,500 feet (selected runways)
9. Taxiway Specifications
- Slopes: C3 0.3% downward gradient
- Designators: Multiple alphanumeric identifiers throughout movement areas
10. Significant Dates
- EC-3 Period: December 25, 2025 - January 22, 2026
This operational guide provides comprehensive reference material for all personnel involved in Chicago O'Hare International Airport operations. Proper implementation of these procedures and awareness of infrastructure details contribute significantly to aviation safety and efficiency.