I see that in a thread below (or maybe above now!) someone has quoted a section out of LASORS..
Article 155
(2) An aircraft shall be deemed to be in
flight:
(a) in the case of a piloted flying machine, from the moment when, after the embarkation of its crew for the purpose of taking off, it first moves under its own power until the moment when it next comes to rest after landing;
Why the plethora of clauses that convolute the text so as to make understanding so difficult to comprehend. (not necessarily in the above though) Is it that over time amendments have been made to close abuses or unintended interpretations of the regulation?
So to the above extract:-
1) "in the case of a piloted flying machine" ..... Have pilots been logging P1 for pilot-less aircraft
2) "for the purpose of taking off" ..... Pilots were logging P1 for moving the aircraft under it's own power when there was no intention of taking off.
And the one I really like.
3) "from the moment when, after the embarkation of its crew"..... So have we had a crew member logging P1 when he was not actually in the aircraft?? Co-pilot start-up taxis out, Captain joins him at the threshold.