| Agency: Drumheller Airport - CEG4 changed from Drumheller Airport - EG4 (Aircraft / Airport) to Drumheller Airport - CEG4 (Ai | mciupa | 2017-02-21 19:37:49 |
| Agency: Drumheller Airport - EG4 changed from CEG4 Drumheller Airport (Aircraft / Airport) to Drumheller Airport - EG4 (Aircra | mciupa | 2017-02-21 12:36:32 |
| Frequencies Updated (Updated: 1, Deleted 0) for Unicom | mciupa | 2011-07-10 13:54:39 |
| Category (Air Operations Sort: 10) changed to (CEG4 Sort: 10) | mciupa | 2011-06-27 14:22:18 |
| Sub-category (Unicom Sort 99) changed to (Unicom Sort: 99) | mciupa | 2011-06-13 14:21:37 |
| Agency CEG4 Drumheller Airport changed from Drumheller Airport - CEG4 (Aircraft / Airport) to CEG4 Drumheller Airport (Aircraft | Jay911 | 2008-03-19 02:51:49 |
| Added Frequency 122.8 (Unicom) | Jay911 | 2008-03-11 15:40:28 |
| Sub-category (New SubCategory - CHANGE THIS NAME Sort 99) changed to (Unicom Sort: 99) | Jay911 | 2008-03-11 15:39:50 |
| Category (Air Operations) added | Jay911 | 2008-03-11 15:39:25 |
| Agency Drumheller Airport - CEG4 changed from Drumheller Airport - CEG4 (Public Safety) to Drumheller Airport - CEG4 (Aircraft / | Jay911 | 2008-03-11 15:31:12 |
