-----Original Message-----
From: Michelle P ]
Posted At: Saturday, September 02, 2006 1:17 PM
Posted To: rec.aviation.ifr
Conversation: Can EFIS / EFMS lead to removing basic safety checks?
Subject: Can EFIS / EFMS lead to removing basic safety checks?

....
You would only check the EFIS heading if the Comparator smelled
trouble
and triggered a warning. The computer cross checks the left and right
systems so the pilots do not have to.
Michelle P

I think that is my point; if the computer cross-checks the left and
right systems and not the pilots, then who tells the computer to depart
on runway 26 instead of 22?

It seems to me that when the task (not the responsibility) of checking
the HSI or DG was assumed by the computer, the pilots abdicated the
responsibility of making sure everything balanced: runway heading, HIS
or DG, taxi instructions, and take-off clearance. I think if they had
included a manual check of the headings they might have noticed they
were off by 40 degrees.

I believe it is the pilots' responsibility to observe these things and
not the controllers' responsibility to run traffic signals at the
hold-short line.