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Change To Uk Instrument Landing System (ils) Phraseology

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Change To Uk Instrument Landing System (ils) Phraseology

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Old 15th Oct 2007, 21:31
  #21 (permalink)  
 
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Is there still a requirement to get a loc established call ? If not - presumably we wait until we see the aircraft descending and assume it is established?
And I'd put the runway at the end - ie descend ILS 27R
louby
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Old 15th Oct 2007, 22:00
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Just shows the ambiguity doesn't it!

It only says there is no need for a descending on the ILS call, so who knows about the loc established call...(except if there is an altitude restriction, then they have to report loc established)
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Old 15th Nov 2007, 22:07
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Well, thats day 1 with the new phraseo just about over and done with. What did people think? (if you used it at all )
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Old 16th Nov 2007, 10:37
  #24 (permalink)  
 
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4 ILSs on Day 1:
A London Airport - new phraseology and procedure made not one jot of difference - still got report localiser etc etc.
A Major Northern Airport - received a combination of the old and new from the same controller on the same approach - controller prior to him used the old wording/procedure.
A N Other Northern Airport - first approach - a valiant effort by the controller on the first approach but got wording a little muddled; a very good effort from a differentt controller later in the day.

Question: is there a requirement for either ATC to ask for a report of localiser established or the crew to report localiser established. I'm more than happy to be given intercept heading and just get on with it given that if anything untoward does happen then I'll let ATC know.
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Old 16th Nov 2007, 14:54
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New words placed on FPS in front of radar controller to aid the tongue tied amongst us! - also as a watch we reckon that the Loc established call is no longer needed, just extra R/T and should be apparent if a problem
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Old 18th Nov 2007, 20:08
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Doesn't seem to be working too well if you ask me, controllers and pilots getting the words wrong and of course aircraft from other parts of the globe where "cleared ILS" is the standard phrase are just responding "left heading 240, cleared ILS". Some of these replies are being challenged by the controller, to the bemusement of the pilot, and some are not. Once again the UK seems to have created a total mess albeit with the best of intentions, pretty hopeless really.
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Old 18th Nov 2007, 20:40
  #27 (permalink)  
 
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Well, after a few more days of flying into airports various around the UK I think a fair summary would be pretty widespread non-compliance from the ATC world. I know old phraseology is hard to kick but it really is quite simple for all concerned as per the FODCOM/ATSIN.
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Old 18th Nov 2007, 21:46
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Judge 11 wrote:
it really is quite simple for all concerned as per the FODCOM/ATSIN
Judge 11, I have a number of "Issues" with the new phraseology - at the airport where I work, due to traffic/airspace/runway orientation aircraft regularly establish on the Localiser from 10-25nm from touchdown. The protected range of the Glidepath is only 10nm/3000ft. Due to the airspace configuration (which varies with time of day) we cannot just descend arrivals to 3000ft or lower straight away (have to descend in 3 or 4 steps) so cannot use the "when established descend on ILS" bit for these at all - we have to use the other one which requires us to say "Maintain (level)"

Repeating a previously correctly acknowledged level instruction has been identified as a major factor in Level Bust incidents - repeating opens the door to errors - and within NATS it is being drummed into ATCOs not to do it as part of the Defensive Controlling initiatives. The CAA just go and undo all the good work being done There is also the issue that because of the need for stepped descents due to airspace, we would say "Maintain (level) and then before the aircraft established, give a further descent instruction - making the "Maintain" superfluous (extra and unnecessary RT) - but thats what the CAA have decreed.

In addition, for those aircraft that do establish within the protected range - the phraseology removes the "established" call so they potentially can be transferred to tower without a positive confirmation that the aircraft is actually established - all good up to the point where the aircraft goes sailing through the localiser. With limited vectoring airspace that can be anything from embarrassing to dangerous if not corrected immediately.

The change in phraseology has introduced an extra possibility for mistakes (see above re:Maintain") and added to the amount of RT on already congested frequencies. Personally, I prefer the ICAO standard "Cleared ILS" (at an appropriate moment) and I believe that a simpler solution would be to make that the "Standard". At those airports where its use could cause a problem (by immediate descent to platform altitude) then the CAA should address the issue and rewrite the Instrument Approach Procedures to remove that possibility.

I predict the next move will be an increase in the protected range of UK ILS Glidepaths

DD
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Old 19th Nov 2007, 15:18
  #29 (permalink)  
 
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Well, I have to report an exemplary approach to 05L at MAN this afternoon courtesy of the approach controller at around 1300. We were given a closing heading followed by the new phraseology; we established and commenced descent without a word being uttered by either party until the controller told us to contact tower.

Quite why the CAA couldn't swallow pride and go along with the rest of the world with 'Cleared ILS' I don't know - being British 'we know best' mentality might have something to do with it?
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Old 19th Nov 2007, 17:11
  #30 (permalink)  
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No noticeable change in Scotland (probably at Data Dad's field ), and as far as I know the phraseology has been available for use for some time (CAP413 Appendix 1). As it should be - used when of benefit, not used when not.
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Old 19th Nov 2007, 18:47
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DB6
isn't that the point though? Previously the "when established , descend..." phrase was available if required whereas the ATSIN appears to make it compulsory?
Mind you, my Kollege of Knowledge spies tell me that SRG has told them that any and all phrases are avaiulable for personal choice...as per the new edition MATS Part 1 when it's formally published on thursday

Tori
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Old 19th Nov 2007, 19:36
  #32 (permalink)  
 
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Interesting to see who will be the first one to descend below their cleared altitude on an intercept heading,using new style phraseology.It will happen.
Does that mean it hasn't worked.Is it confusing?
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