When is it necessary to adjust the pressure in the reference scale of an alitimeter?

Question

Question PPL(H) - Private Pilot License - Aircraft General Knowledge

QuizVDS · Accepted Answer

Before every flight and during cross country flights

QuizVDS · Answer

After maintance has been finished

QuizVDS · Answer

Once a month before flight operation

QuizVDS · Answer

Every day before the first flight

Id 220 - PPL(H) EN - When is it necessary to adjust the pressure in the reference scale of an alitimeter?