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Old 27th May 2015, 09:30
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Journey Man
 
Join Date: Jun 2009
Location: UK
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‘Do not climb above SID levels until instructed by ATC'

Hi Mikehotel152, I agree that climb to the final altitude on the SID is only in compliance with the crossing altitudes. I stated fairly early on that altitude restrictions were confirmed and crosschecked in the FMS - as you'd expect - so with that caveat in place….

I looked at the CLN 8R SID (https://fly.rocketroute.com/plates/a...5913&icao=EGSS), and I came across AAIB Bulletin 2/2012 EW/C2011/03/05 which states:

Additionally, it is possible for pilots to misinterpret the instruction:

‘Do not climb above SID levels until instructed by ATC’

to mean that they must obtain positive ATC clearance to climb above all of the levels specified on a SID.
I would now interpret this to mean that setting the first step altitude in the MCP, i.e. A4000 in the case of CLN8R, is appropriate. It infers ATC clearance is required for further climb. However, there is also a warning to ensure strict compliance with the specified altitudes in the SID. Let's take the case of a radio failure… on the CLN8R, established CLN R268 at D23 and A4000.

Appreciate all input
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