| Added Frequency 135.625 (Potomac Approach/Departure) | dtscho | 2015-11-06 13:23:44 |
| Added Frequency 121.0 (Patuxent Approach/Departure) | dtscho | 2015-11-06 13:22:37 |
| Frequencies Updated (Updated: 0, Deleted 3) for St. Mary's Airport (2W6) | dtscho | 2015-11-06 13:22:07 |
| Frequencies updated | ericcarlson | 2005-06-19 07:24:35 |
| Sub-category Air Traffic Control changed | ericcarlson | 2005-06-19 07:24:01 |
| Category St. Mary\'s Airport (2W6) changed | ericcarlson | 2005-06-19 07:23:50 |
| Frequencies updated | brian86 | 2004-07-07 20:10:49 |
| Category St. Mary\'s Airport Control changed | brian86 | 2004-07-07 19:49:11 |
| Added Frequency 122.1000 | brian86 | 2004-07-07 19:46:39 |
| Added Frequency 123.1000 | brian86 | 2004-07-07 19:45:48 |
| Added Frequency 132.5500 | brian86 | 2004-07-07 19:45:06 |
| Added Frequency 134.1000 | brian86 | 2004-07-07 19:44:35 |
| Added Frequency 120.0500 | brian86 | 2004-07-07 19:43:49 |
| Sub-category Tower changed | brian86 | 2004-07-07 19:41:42 |
| Category Aviation added | brian86 | 2004-07-07 19:37:48 |
