Rushing to check in on freq. I sometimes can’t even correct a wrong read back before someone else is jumping in. Your first call is usually not that urgent (but if it is we will call you.)
First call to Director: long transmissions giving speed, QNH, next point or name of STAR, etc. Regardless of what you’re supposed to say the only things we need are aircraft type and cleared level.
We can see your speed on radar and strips, a fresh QNH will be given on first descent to an altitude.
Each extra item on first call increases the length of the transmission exponentially and there’s nothing worse than watching an aircraft fly through the localiser or turn outbound in the hold because the frequency is blocked with someone saying “and the err..um...QNH is....um....I’ve got it here...somewhere....”
Asking for climb/descent/WX avoidance when it’s self evident from TCAS or there’s another aircraft RIGHT THERE.
Thanks for asking PilotViking!