Counting out the weekends, we get 261 days.
Counting out 20 days of leaves and holidays, we get 241 days.
Considering 9 hrs per day, we have 2169 hrs per year.
Approximating my corporate life to 7.5 years,
I have worked for over 16000 hrs as a Software Engineer.
Does that mean I can never make a mistake in my profession on any given day?
PS: No offense meant to the ill-fated pilot but just an observation. It just seems silly to quote a huge number of professional hours against a person to show his infallibility.