Aviation Work-As-Done

Contact twice

Reading our clearance from top to bottom, we were a bit surprised to read that the next frequency was 127,780 while the line below mentioned contacting 121,730 first.

Also, look how easy it is to misread the frequencies (by reversing 3 and 8).

Sure this isn’t a big deal. You are on the ground with the engines off, but imagine that you have a restriction on your departure time and the frequency is really congested. Let’s make things simple.