767 GE 80-c2 anti-ice in descent
I've found conflicting refs in our own manuals and quite a few (possibly out-of-date) refs on the web about the need to have AI on during descent with sAT below -40c. It may have been covered on here before but I understand there has been a Boeing/GE rethink in recent days/weeks.
Any thoughts? We still have a Boeing Bulletin that mandates the use of AI below -40 but the ops manual says otherwise.
PS. How hot is AI air when it leaves the bleed valve (approx)?
Last edited by blue up; 26th Nov 2007 at 14:18.
Reason: TAT and SAT mixed up.