--- apt.dat	2016-12-08 18:56:02.310707492 +0100
+++ apt.dat-001	2016-12-08 19:01:00.082169377 +0100
@@ -926129,7 +926129,7 @@
 19   45.98520090 -065.30815534 1 WS
 19   45.98509598 -065.29620316 1 WS
 19   45.98776000 -065.29826459 1 WS
-51 12320 
+51 12320 CTAF/UNICOM
 
 1     1000 0 1 3MN7 Haven
 100   22.86   3   0 0.25 0 0 0 15   45.49243037 -094.12309108    0.00    0.00 1  0 0 0 33   45.48749963 -094.11966060    0.00    0.00 1  0 0 0