| Effective Date: | 2007-01-18 |
| Airport Site Number: | 04372.*A |
| Airport Code: | ALN |
| Airport Location: | Alton/st Louis, IL |
| FAA Region: | AGL - Great Lakes |
| Runway: | 29 |
| Runway Dimension:: | 8101 x 150 ft |
| ILS Type: | Instrument Landing System/Distance Measuring Equipment |
| ILS Category: | I |
| Facility Owner: | Federal Aviation Admin. |
| Facility Operator: | Federal Aviation Admin. |
| Approach Bearing: | 291 (Degrees Magnetic) |
| Magnetic Variation: | 02E |
| Identification Code: | I-ALN |
| Frequency: | 108.50 MHz |
| Longitude/Latitude: | 090-03-26.595W/38-53-45.824N -90.057387/38.896062 |
| Course Width: | 5.53° |
| Dist. From Runway Stop End: | 750 ft |
| Type: | Standard Glide Slope |
| Angle: | 3.00° |
| Frequency: | 329.90 MHz |
| Longitude/Latitude: | 090-01-53.333W/38-53-18.117N -90.031481/38.888366 |
| Dist. From Runway Approach End: | -970 ft |
| Elevation: | 531.00 ft |
| Type: | Middle Marker Beacon Only |
| Longitude/Latitude: | 090-01-12.675W/38-53-00.669N -90.020187/38.883519 |
| Dist. from Runway Approach End: | 2680 ft |
| Type: | Outer Marker/Compass Locator |
| Identifier: | AL |
| Name: | ALPOS |
| Frequency: | 218 KHz |
| Longitude/Latitude: | 089-56-17.563W/38-51-18.469N -89.938212/38.855130 |
| Dist. from Runway Approach End: | 28210 ft |
| Channel: | 022X |
| Longitude/Latitude: | 090-03-27.477W/38-53-43.858N -90.057632/38.895516 |
| Dist. From Runway Stop End: | 750 ft |