Jim Carter wrote:

-----Original Message-----
From: Beavis ]
Posted At: Saturday, September 02, 2006 11:40 AM
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?


...

Did you align the IRUs in your 152 before you started moving? Check

the

landing gear doors as part of your walk-around? Of course not,

because

they're not appropriate procedures for THAT AIRPLANE. See what I'm
getting at?


I see what you saying about specific procedures for particular aircraft,
but shouldn't heading cross-checks be basic airmanship?

In the analog aircraft that entails manually setting the DG when
cross-checking with the runway and compass. Having not flown and EFIS /
EFMS equipped aircraft, my question was is there a similar cross-check
or has the system negated that necessity. It seems from the answers that
the heading cross-check is no longer manual or an actual checklist item,
so the system has eliminated that safety check.

Now the question becomes, would a checklist item have caught the
complacency if that is truly what the root cause of the LEX accident
turns out to be?



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