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Old 16th Jul 2017, 12:11
  #5 (permalink)  
FlightDetent

Only half a speed-brake
 
Join Date: Apr 2003
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It is a bit of a mess. There are E-AI paragraphs in SOP CLB and DES/preparation, and a new LIM part to define what constitutes icing conditions. However, there is no CRZ anti-ice use section.

Previously, which is the OP's concern if I am not mistaken, the guideliness for cruise were:
- in cloud and SAT below -40: not required
- in cloud in the vicinity of CBs, even if SAT below -40: required.

When I tried to deduce the present CRZ rules from the new CLB and DES/prepartion paragraphs, I came to opposing results. Too lazy to post pictures of the text at the moment.

It seems the CRZ section is missing (wrongly), and whoever worded the CLB paragraph got me confused. Unless, for cruise now they want us to keep the E.A-I ON in cloud regardless of SAT - because that's what the CLB section wording implies.

PRO-NOR-SOP-13 "A: After Take-Off" -> ENG ANTI-ICE pb-sw
PRO-NOR-SOP-16 "A: Descent preparation" -> ENG ANTI-ICE pb-sw
LIM-ICE_RAIN "A: DEFINITION OF ICING CONDITIONS"

We should have a look into the AFM, actually.
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