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None standard instrument approaches.

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Old 21st Sep 2012, 08:04
  #41 (permalink)  
 
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Given that Jepp stuff is used by the majority of commercial ops (and practically all bizjet ops) around the world, I would think twice before assuming they have done this wrong at a number of airports especially ones surrounded by terrain. Not impossible; just unlikely.

So, in a TERPS approach, my take is you go descend to MDA, if you are clear of cloud, ISOS, have the specified flight visibility and sufficient visibility to fly visually to the airport and (implicitly) if necessary fly back out, you carry on the visual segment
I agree; it would be daft to become visual at the MDA and have to go around if you cannot see the runway at that instant despite the conditions being pefectly good enough for VFR flight.
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Old 21st Sep 2012, 10:30
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It then depends how current you are with the airfield you are at or if there are any issues.

In general I would agree for normal places.

This ain't.

They have cables and masts all over the place most of the time they haven't got lights on them, also have masking terrian behind them,

Personally I tend to stick over water then when I have the PAPIS 2 or 3 white then decend if in VFR wx but I would cancel IFR first. Mainly to see if the controller comes back negative in case I have missed something in my planning and doing that is banned by some local procedure.
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Old 21st Sep 2012, 11:19
  #43 (permalink)  
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I agree; it would be daft to become visual at the MDA and have to go around if you cannot see the runway at that instant despite the conditions being pefectly good enough for VFR flight.
True, during the day at least. My question on the Nordic forum about this came back with the reply that in general there will always be at least lead in lights that should be visible at the MAP, otherwise one couldn't do the approaches at night.
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Old 21st Sep 2012, 11:40
  #44 (permalink)  
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I have always found these approaches easier at night with wx towards mins to be honest.

Not very nice feeling though large black objects either side of you and the knowledge that if you go over half scale deflection you might hit something.
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Old 21st Sep 2012, 12:37
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Originally Posted by mad_jock
Eu-OPS is only commercial isn't it?

The private minimas are usually defined some where else. UK has just said that eu-ops applys to all its instrument approaches.

Has ICAO 8168 got anything in it?
The reason I ask is that several posters (who appear to be familiar with Norwegian operations) have indicated a lack of confidence that Jepp are calculating their minimum vis correctly, France seems to use something other than EU-OPS (which I accept is targeted to commercial operators), the UK has their minima buried in the GEN section, the Norwegians don't appear to document what they are doing regarding vis minima (at least not in English), and PANS-OPS doesn't apply as the approaches in question are notified as not compliant anyhow. How is a pilot supposed to work out his minimums!

I can't believe this information is so well hidden - and that I had never noticed it before!


PS - Peter, I 'know' Jepp is likely to be correct, but having had the question raised, I was really surprised at the variability in approaches to setting and documenting the viz minima in each country's AIP.
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Old 21st Sep 2012, 13:10
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Originally Posted by mm_flynn
and PANS-OPS doesn't apply as the approaches in question are notified as not compliant anyhow.
really? where is that notification then?
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Old 21st Sep 2012, 13:21
  #47 (permalink)  
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They have on the plates and also in the gen section of the AIP that they don't conform to the ICAO annex of procedure design.
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Old 21st Sep 2012, 13:45
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The state chart says that the descent gradient for this approach exceeds the maximum defined in PANS-OPS. Is that what you mean by non-compliant?
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Old 21st Sep 2012, 13:52
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Also in the gen section it states that approaches can be more than 30degrees off runway track.

There is a long list in the gen section which there has been given a link for.

https://www.ippc.no/norway_aip/curre...GEN_1_7_en.pdf

It must have been in the deleted one.

Last edited by mad_jock; 21st Sep 2012 at 14:08.
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Old 21st Sep 2012, 14:21
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Having a final approach track more than 30 degrees offset from the runway centreline is perfectly compliant with PANS-OPS , and in fact is common in mountainous terrain. PANS-OPS just says that in this case the approach has to be a specified as a circling approach, which this one at ENOV is.
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Old 21st Sep 2012, 14:34
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There are three other pages of differences if that one doesn't work.

Maybe standard as much as they can would be a better term. Somethings you better know about before attempting because you will get a nasty shock if you don't know about them.

Last edited by mad_jock; 21st Sep 2012 at 14:38.
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Old 21st Sep 2012, 14:54
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There are only a few that apply to IAPs and I can't see any that would give a pilot of a Cat A/B a nasty shock as long as the approach is flown in the way PANS-OPS expects.

What is interesting is that the Jeppesen chart for this approach has the usual "PANS-OPS" note in the margin. That means that "that the State has specified that the approach procedure complies with ICAO Document 8168, Volume II, First or Second Edition."
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Old 21st Sep 2012, 15:44
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O well you can call them standard then.

To me in that enviroment they are none standard and would take several hours to do the performance planning, escape route planning, missed approach plan, area brief, terrain brief and chat with the tower.

None of which I would do if I was going to any normal standard airports.
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Old 21st Sep 2012, 15:58
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Can't argue with any of that. Personally, when planning to fly an IAP for the first time, especially where terrain is an issue, I always include a check of the state chart as part of the brief.
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Old 21st Sep 2012, 23:28
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Originally Posted by mad_jock
O well you can call them standard then.

To me in that enviroment they are none standard and would take several hours to do the performance planning, escape route planning, missed approach plan, area brief, terrain brief and chat with the tower.

None of which I would do if I was going to any normal standard airports.
Words of wisdom Approaches like ENOV are not to be attempted offhand without a thorough pre-briefing. For example, what do you do if you for some reason need to get out of Dodge after having left the LLZ track and turned VFR towards the field? You need to have a plan for that. How high is the surrounding terrain in different directions? You need to know that beforehand. Do you turn to a predetermined inbound track for the NDB west of the field? Etc. etc.
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Old 22nd Sep 2012, 08:39
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How does a private operator establish what the approach minima are if they are not in the AIP and the Jepp minima may be wrong for a number of these airports?
What makes you think that there are RVR/CMV/vis minima for such approaches?

Prior to about 1992, there were no such mandatory minima for private and aerial work flights in the UK. The advice was to use the public transport minima, but there was no approach ban.
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Old 22nd Sep 2012, 12:14
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Yet a new question BW? Jepp publishes minimum visibilities on UK and Norwegian plates. The UK in the AIP seems to say the EU-OPS minima (with regard to visibility ) apply to all operators on published approaches. But there appears to be no comment from the Norwegians. How do I as a rather thick pilot know what the relevance of the Jepp minima are - the UK seems to be mandatory whereas the Norwegian ones seem to be just a number jepp dreamed up through some internal process with no practical or regulatory relevance. What about .... (any one of the nearly 200 contracting countries?

Last edited by mm_flynn; 22nd Sep 2012 at 13:47.
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Old 22nd Sep 2012, 19:01
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I have just started flying a 79,000 KG jet into some of these places, by all accounts there is a weeks course including Sim for the really interesting places in the north of Norway.........I think I am about to see some places that make Chambery and Funchal look tame !
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Old 22nd Sep 2012, 19:09
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Don't be worried about white runways they chop the ice and its a remarkably good surface if a bit ruff.
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