| Frequencies Updated (Updated: 1, Deleted 0) for Manassas Regional Airport (HEF) | dtscho | 2019-03-21 06:12:37 |
| Added Frequency 129.05 (Dulles Aviation) | dtscho | 2016-08-16 16:38:11 |
| Added Frequency 131.625 (Chantilly Air) | dtscho | 2016-08-16 16:37:41 |
| Added Frequency 128.9 (APP Jet Center) | dtscho | 2016-08-16 16:37:05 |
| Added Subcategory: Fixed-Based Operators | dtscho | 2016-08-16 16:36:26 |
| Sub-category Air Traffic Control changed | dtscho | 2007-01-26 09:09:32 |
| Frequencies updated | dtscho | 2007-01-26 09:09:17 |
| Added Frequency 125.175 | dtscho | 2007-01-26 09:08:55 |
| Added Frequency 122.8 | dtscho | 2007-01-26 09:08:36 |
| Added Frequency 133.100 | ericcarlson | 2006-05-13 09:19:53 |
| Sub-category Air Traffic Control changed | ericcarlson | 2006-05-13 09:19:44 |
| Category Manassas Regional Airport (HEF) added | ericcarlson | 2006-05-13 09:19:36 |
