| Added Frequency 119.575 (AWOS-3) | dtscho | 2024-03-16 15:06:51 |
| Added Frequency 135.625 (Potomac Approach/Departure) | dtscho | 2015-11-06 19:23:44 |
| Added Frequency 121.0 (Patuxent Approach/Departure) | dtscho | 2015-11-06 19:22:37 |
| Frequencies Updated (Updated: 0, Deleted 3) for St. Mary's Airport (2W6) | dtscho | 2015-11-06 19:22:07 |
| Frequencies updated | ericcarlson | 2005-06-19 12:24:35 |
| Sub-category Air Traffic Control changed | ericcarlson | 2005-06-19 12:24:01 |
| Category St. Mary\'s Airport (2W6) changed | ericcarlson | 2005-06-19 12:23:50 |
| Frequencies updated | brian86 | 2004-07-08 01:10:49 |
| Category St. Mary\'s Airport Control changed | brian86 | 2004-07-08 00:49:11 |
| Added Frequency 122.1000 | brian86 | 2004-07-08 00:46:39 |
| Added Frequency 123.1000 | brian86 | 2004-07-08 00:45:48 |
| Added Frequency 132.5500 | brian86 | 2004-07-08 00:45:06 |
| Added Frequency 134.1000 | brian86 | 2004-07-08 00:44:35 |
| Added Frequency 120.0500 | brian86 | 2004-07-08 00:43:49 |
| Sub-category Tower changed | brian86 | 2004-07-08 00:41:42 |
| Category Aviation added | brian86 | 2004-07-08 00:37:48 |
