| Effective Date: | 2007-01-18 |
| Airport Site Number: | 08778.*A |
| Airport Code: | BOS |
| Airport Location: | Boston, MA |
| FAA Region: | ANE - New England |
| Runway: | 04R |
| Runway Dimension:: | 10005 x 150 ft |
| ILS Type: | Instrument Landing System/Distance Measuring Equipment |
| ILS Category: | III |
| Facility Owner: | Federal Aviation Admin. |
| Facility Operator: | Federal Aviation Admin. |
| Approach Bearing: | 036 (Degrees Magnetic) |
| Magnetic Variation: | 16W |
| Identification Code: | I-BOS |
| Frequency: | 110.30 MHz |
| Longitude/Latitude: | 070-59-48.191W/42-22-55.973N -70.996720/42.382215 |
| Course Width: | 3.67° |
| Dist. From Runway Stop End: | 2075 ft |
| Type: | Standard Glide Slope |
| Angle: | 3.00° |
| Frequency: | 335.00 MHz |
| Longitude/Latitude: | 071-00-24.545W/42-21-21.825N -71.006818/42.356063 |
| Dist. From Runway Approach End: | -2171 ft |
| Elevation: | 16.40 ft |
| Type: | Inner Marker Beacon Only |
| Longitude/Latitude: | 071-00-39.908W/42-21-04.707N -71.011086/42.351307 |
| Dist. to Runway Approach End: | 978 ft |
| Type: | Middle Marker Beacon Only |
| Longitude/Latitude: | 071-00-47.616W/42-20-53.183N -71.013227/42.348106 |
| Dist. from Runway Approach End: | 1144 ft |
| Type: | Outer Marker/Compass Locator |
| Identifier: | BO |
| Name: | MILTT |
| Frequency: | 375 KHz |
| Longitude/Latitude: | 071-02-56.951W/42-16-25.524N -71.049153/42.273757 |
| Dist. from Runway Approach End: | 29929 ft |
| Channel: | 040X |
| Longitude/Latitude: | 070-59-51.056W/42-22-57.541N -70.997516/42.382650 |
| Dist. From Runway Stop End: | 2171 ft |