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Mandatory Altitude Jepp Chart

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Old 21st Jun 2018, 15:04
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Mandatory Altitude Jepp Chart

Good Day All,
It's been a while a have this question in mind. I did my research on the Jepp manual but I didn't find anything conclusive.
Is a level off between 12D and 7,4D mandatory? or the constraint 2000 Ft only apply at the FAF 7,4D?
Awaiting for your comments and doc reference if you have one.
Cheers


Last edited by Feather44; 21st Jun 2018 at 15:07. Reason: spelling
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Old 21st Jun 2018, 17:04
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Step 1: check the AIP ? It kinda opens the question, how quickly you'd need to descent to comply with the author's intent...
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Old 21st Jun 2018, 17:45
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Originally Posted by Feather44
Good Day All,
It's been a while a have this question in mind. I did my research on the Jepp manual but I didn't find anything conclusive.
Is a level off between 12D and 7,4D mandatory? or the constraint 2000 Ft only apply at the FAF 7,4D?
Awaiting for your comments and doc reference if you have one.
Cheers

You can decent to 2000 feet after passing D12.0, but you don't have to if you're following a profile (eg. you can be higher than 2000 feet), but you must not decent below the MANDATORY altitude depicted until after passing D7.4(FD33).
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Old 21st Jun 2018, 18:45
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Isn't that the situation if the word MANDATORY had not been there?
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Old 21st Jun 2018, 18:53
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Interesting that 'mandatory' is also published for the procedure turn at 2500'. I've never seen this before. Regarding the 2000' & 7.4nm, it is usual to show 2000' AT 7.4nm. If the same was true for the procedure turn it should show 2500' AT 12nm.

It is bizarre by it being an unusual display. I wonder what other chart manufacturers depict? After all, Jeppesen publishes only the information supplied to them by the state.
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Old 21st Jun 2018, 19:01
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Originally Posted by RAT 5
Interesting that 'mandatory' is also published for the procedure turn at 2500'. I've never seen this before. Regarding the 2000' & 7.4nm, it is usual to show 2000' AT 7.4nm. If the same was true for the procedure turn it should show 2500' AT 12nm.

It is bizarre by it being an unusual display. I wonder what other chart manufacturers depict? After all, Jeppesen publishes only the information supplied to them by the state.
The AIP version only has the ‘at 2500’ at 12D inbound so the turn can be flown whilst descending
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Old 21st Jun 2018, 20:09
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Lido. Couldn't find the Egyptian AIP online.
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Old 22nd Jun 2018, 08:15
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Lido shows it a lot more clearly. Unfortunately this is another example of Jeppesen's lack of standardization when it comes to their charts, its like the magic phrase 'authorization required' on CAT II and III minimums (stating the obvious), but the same note on RNP-AR procedures (which are usually called only RNAV still on many of their charts).
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Old 22nd Jun 2018, 12:53
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Jeppesen could show the same as Lido, but for some reason decided not to, and included the M word. Still curious.
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Old 24th Jun 2018, 10:00
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Lido make it crystal clear!!
Thanks for your answers guys.
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Old 24th Jun 2018, 13:19
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Originally Posted by STBYRUD
Lido shows it a lot more clearly. Unfortunately this is another example of Jeppesen's lack of standardization when it comes to their charts, its like the magic phrase 'authorization required' on CAT II and III minimums (stating the obvious), but the same note on RNP-AR procedures (which are usually called only RNAV still on many of their charts).
Jeppesen title for RNP AR is RNAV (RNP) RWY XX and combined with "authorization required" in the briefing strip is the functional equivalent of "RNP AR."
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Old 24th Jun 2018, 14:04
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hahaha...just remembered, the term 'briefing strip' is a Jepp trademark!

Jepp Definition:
MANDATORY ALTITUDE — An altitude depicted on an instrument approach procedure chart requiring the aircraft to maintain altitude at the depicted value

All altitudes depicted in the profile view are MINIMUM altitudes unless specifically labeled otherwise.
All altitudes are above mean sea level in feet (AMSL).
5 — Maximum altitudes: may be abbreviated "MAX".
6 — Mandatory altitudes: abbreviations are not used.
7 — Recommended altitudes: abbreviations are not used
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Old 25th Jun 2018, 13:04
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Originally Posted by underfire
hahaha...just remembered, the term 'briefing strip' is a Jepp trademark!
Could be. But, FAA uses briefing strips on FAA IAP charts. The concept originated at Volpe:

https://www.volpe.dot.gov/

not at Jeppesen.
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Old 25th Jun 2018, 13:49
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Does the ‘Mandatory’ labelling follow ICAO standards and recommended practices?
Does the USA/FAA follow ICAO in this matter; if not have they declared a deviation from ICAO?
Alternatively if the FAA and ICAO are in agreement, then are ‘volpe’ / Jepp, etc out of step, and are they, and what they publish subject to FAA oversight?




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Old 25th Jun 2018, 20:31
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Standards in charting?!?!?! Thats funny!

Last edited by underfire; 25th Jun 2018 at 20:42.
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Old 26th Jun 2018, 13:04
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Originally Posted by underfire


Standards in charting?!?!?! Thats funny!
https://tinyurl.com/y85govyu
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Old 6th Jul 2020, 16:24
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Just wondering if we had made any further progress on this or if we have anything definitive.

It doesn’t appear to me to make any sense to be using stepdown attitudes nowadays with the systems we have on board and our ability to fly constant descent CDFA approaches.

Interested to hear peoples opinions 🤔
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Old 7th Jul 2020, 05:36
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I'd take it to mean that you must descend to 2000' once passed 12nm. Could it be due to traffic conflicts at another field? Or to separate departing traffic?
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Old 7th Jul 2020, 08:35
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Old topic this one, but I asked a similar questions not long ago. It's just a Jeppesen thing, it's mandatory to be at the FAF at or above 2000 ft, not below.
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Old 7th Jul 2020, 20:34
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Originally Posted by Banana Joe
Old topic this one, but I asked a similar questions not long ago. It's just a Jeppesen thing, it's mandatory to be at the FAF at or above 2000 ft, not below.
This is not true. It's mandatory to be AT 2000, not above or below.
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