JD and fireflybob...
Quote:
Originally Posted by
fireflybob 
If I call to get a clearance prior to start/pushback and advise I have "Info X" why do I need to state the QNH since this is normally passed again when I call for taxi and the readback is mandatory?
... this
is precisely the thread question (to which, incidentally, there has not yet been offered a satisfactory answer) and ...
That's a moot point, because at LHR we do not give the QNH out at all, either with pushback or taxi.....if you state the correct QNH first time 'round.
The reason? So we can ensure you have the correct QNH. I'm having problems understanding what is so difficult to grasp.