CTOT RULES
Getting a new CTOT whilst taxiing is not uncommon. It could be down to Ops delaying the flight plan or an extra restriction.
The majority of times a phone call to LFMU results in a 'let it go' and make a note in the log, especially if it is due to the latter reason.
The majority of times a phone call to LFMU results in a 'let it go' and make a note in the log, especially if it is due to the latter reason.
Join Date: Aug 2010
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Ok, maybe I'm overreacting here a bit but I just wanted to point out that had this happened in Spain, we would have now several pages of comments about how dreadful spanish ATC is.
Please refer to this post whenever you are about to say or read something like "CTOT only happens in Spain"
/rant off
Please refer to this post whenever you are about to say or read something like "CTOT only happens in Spain"
/rant off
Join Date: Dec 2009
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A SRM message with a later CTOT can be sent up to TAXITIME + TRS (time to remove from sequence ) minutes prior to the current CTOT . There is no message sent to CFMU to indicate startup - so if TAXITIME is declared to CFMU by the ATC unit to be 5 mins and in reality is 10+ minutes you might get startup approved then a worse slot time from CFMU.
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Join Date: Mar 2010
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thanks for help...
I m asking to understand the system of ATC, is it possible to forget to enter start up tim of the AC, and system can think that we ll miss out CTOT with taxi time??? and calculated new CTOT as we missed out slot? couse there was nothing at destination and nothing at departure..
I m asking to understand the system of ATC, is it possible to forget to enter start up tim of the AC, and system can think that we ll miss out CTOT with taxi time??? and calculated new CTOT as we missed out slot? couse there was nothing at destination and nothing at departure..
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CFMU is the Eurocontrol's system to manage CTOTs. It doesn't care about startup time, only EOBT and ATD.
It doesn't matter if you enter startup time into your local ATM system. It is not sent to CFMU.
I think document called "CFMU manual" should be available on Eurocontrol's website. Check it.
It doesn't matter if you enter startup time into your local ATM system. It is not sent to CFMU.
I think document called "CFMU manual" should be available on Eurocontrol's website. Check it.
Join Date: Nov 1999
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Just a question
If the CTOT is based on revised declared taxi time of 40 minutes, ie CTOT is on schedule at EOBT + 40, when would you call for start? Are you guys driving made aware of this?
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