Packs off take off is standard operating procedure in my company.
The objective is to prolong engine life as much as possible, and we do it
always despite the fact the manufacture (airbus) pointing out the real save
of a reduced T/O thrust is produced at high OAT/pressure altitude.
I always believe this practice to be a nonsense because of an increase in
cycles/degradation in pack life, with little gain in engine life, and to
corroborate this i just had an air cycling machine failure after a packs off
T/O.
Any comments/suggestions?
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