Questions tagged [icao]
The International Civil Aviation Organization is a UN body that develops international aviation standards.
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When in 1982 did ICAO start using three-letter airline codes?
All airlines have an alphabetic identification code issued by ICAO. From 1947, when ICAO was formed, until 1982, ICAO codes were two letters long;1 in the latter year, due to the increasing number of ...
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63 views
Are there any regulations for standard taxi routes in ICAO?
I am looking for references to apply Standard taxi routes in an airport under ICAO Regulations and the closest thing I could find helping my cause was SMGCS.
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3answers
257 views
Is flying direct to a navaid considered a leg with track guidance?
When I design SID or Missed approach procedure with a typical sequence of initial legs like "Climb to 5000 feet on R-123 ABC VOR/DME, turn left/right direct to ABC VOR/DME", the regulation ...
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58 views
Got question while reading ICAO document
I got question reading ICAO document(9971).
On 3.1.4.2, it says:
Studies have shown that occupancy count can be used to complement
entry counts and allow higher values for such entry counts.
I'm so ...
3
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2answers
91 views
Which ICAO body designs PANS?
Most air law training documents go at length about how SARPs (Standards and Recommended Practices) are published but nothing about the process related to PANS (Procedures for Air Navigation Services) ...
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2k views
What is the exact meaning of "manoeuvring" when said by ATC in reference to traffic?
In the UK, when receiving a basic service, sometimes the ATC unit passes traffic information. They may say it like this:
“Traffic to your three o'clock, similar level, C172 manoeuvring.”
What ...
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1answer
134 views
Is takeoff permitted from an aerodrome inside a CTR when it's outside the tower's operating hours? [closed]
I am departing from an airfield which is within the CTR of a nearby airport but outside tower operating hours. The chart doesn't specify this situation.
According to ICAO rules,
Am I allowed to take ...
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2answers
1k views
Why are some item numbers missing in ICAO flight plans?
I was looking at an ICAO flight plan and observed that there are only specific ITEMS mentioned in it (see example below)? What is the reason behind excluding the item numbers 1, 2, 3, 4, 5, 6, 11, 12, ...
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115 views
Which organisation deals with Aviation Law - IATA or ICAO?
Both Organisations are involved in Aviation Regulation. But which of them deals with Law? Are directives given by both equally applicable to all aircraft & airline operators?
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1answer
106 views
Can an ICAO contracting state charge money for NOTAMS?
does anyone know of any written icao rules where they state if a contracting state is allowed to charge money for the dissemination of NOTAMS? are products like notams and Local Aeronautical Circular ...
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1answer
70 views
When filing an ICAO flight plan with LPV, is marking GNSS equipment necessary or redundant?
Should equipment 'B' (LPV) and Equipment 'G'(GNSS) both be filed simultaneously in an ICAO flight plan, or does equipment 'B' simply imply GNSS?
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1answer
4k views
What is typical ATC procedure when a non-pilot calls from a commercial flight for help?
"This is ShinyWings 123, I'm not a pilot, the pilot and copilot are unconscious. Help."
Probably a day air traffic controllers dream of with dread, when a member of cabin crew, or even worse,...
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3answers
405 views
What is the correct way to get established on the outbound track on this approach?
If you have been cleared to LCA (from the direction shown by the red arrow) then outbound on the procedure, what is correct way to get established on the outbound track?
Ideally, I'm looking for an ...
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2answers
536 views
Is it possible to fly an EASA registered airplane with an ICAO license?
Is it possible to fly an EASA registered airplane with an ICAO license?
My problem is the following: I have obtained my ICAO PPL license in Argentina with 52 flight hours but currently I live in ...
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2answers
446 views
What is the difference between "Standard Metric Level" and "Altitude" in ICAO flight plans?
What is the difference between "S" and "M" in flight plan altitudes?
The FAA's ICAO flight plan documentation says:
Standard Metric Level in tens of meters, expressed as S followed by 4
figures (...
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2answers
2k views
What organisation owns intersection names?
I understand that five letter intersection codes (such as WARPI, PAPPI, KUBBS, ROSLY, ZALPO, ...) are unique in the world.
However, their names don't comprise a national prefix (as aircraft tail ...
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1answer
64 views
Can i get A&P course materials in .pdf format? [closed]
I would be very grateful if you provide me any material about A&P basic course for mechanics.
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1answer
146 views
For a coded departure procedure (SID), Fly-At-Altitude or At-Waypoint instruction has priority in case of conflict?
I am examining various RNAV departure procedures and especially those whose purpose is to overlay the existing conventional ones. I noticed that some of them begin with a "Flight at Altitude" ...
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1answer
3k views
ICAO and EASA classification of instrument approaches
ICAO distinguishes approaches operations based on DH between 'Type A' (DH >= 250 ft) and 'Type B' (DH < 250 ft), which are further divided into subcategories. From the Annex 6 — Operation of ...
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1answer
130 views
Is there a required check before selling an airliner?
In France, when selling a car, the last check (more or less a C-check) must has been done within the 6 months before the owner change.
Is there an equivalent requirement for airliners? I'm more ...
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1answer
136 views
Can a US registered motorglider be flown in Canadian airspace when piloted by a pilot with the appropriate FAA glider license?
Is a PPL-Glider recognized as ICAO approved? Can a US registered motorglider be flown in Canadian airspace (or land at an appropriate Canadian airport) when piloted by a pilot with the appropriate FAA ...
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239 views
If the airport reported BKN002, would that prevent performing a DH 259' approach?
According to this Instrument Approach:
The published Minimums are a Visibility of 1300 m, and a DH of 259 feet.
In accordance with ICAO, would the Visibility and Ceiling be above the Published ...
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2answers
1k views
How to pronounce ICAO?
How to pronounce ICAO, correctly?
Civil Aviation students claim that their teacher told them to pronounce it as
/ˌaɪˌkeɪˈoʊ/, eye-KAY-oh
but when I look at Cambridge Dictionary it pronounces ICAO ...
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1answer
156 views
Does the validation of an ICAO licence allow you to fly internationally?
Hypothetical situation:
A pilot with an ICAO-compliant PPL licence from Australia goes to France and France issues a licence validation in accordance with the Chicago Convention, thus allowing him to ...
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3answers
242 views
How do humanitarian flights arrange special permissions to fly when ATC isn't available?
In natural disasters, transportation infrastructure is often among the first and most critical of public services to be disrupted. Not coincidentally, it's also a time that tends to see small airports ...
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157 views
Is there a manual which describes the algorithmic procedure on which the Vertical Navigation Guidance is based?
I am interested in the methods implemented by Flight Management Systems in order to calculate a trajectory path of vertical navigation guidance (VNAV), which takes into consideration the legs of the ...
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1answer
95 views
On the ICAO Flight Plan Form, does /S replace O, V, and L?
I know the S stands for standard equipment (VOR, ILS, VHF radio).
Is the format like G/S (GPS with standard equipment), or does the /S not imply coverage of the other line items, i.e., VLGO/S?
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1answer
248 views
Can US pilots fly VFR OTT and/or VFR at night in Canada without additional ratings?
In the US, private pilots flying under VFR are implicitly allowed to fly without visual reference to the ground, eg. over an overcast cloud layer, as long as they maintain appropriate VFR weather ...
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3answers
5k views
To which airspace does the border of two adjacent airspaces belong to?
Consider two adjacent airspaces of different categories. For example, airspace G is up to 2500' and above this is an airspace D. The border is at 2500'. Which airspace are you in if flying at exactly ...
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2answers
876 views
What methodology did ICAO use to create the overall code nomenclature for airports?
If an airport is from North America, then it starts with K and so on.
How did ICAO get the letters from?
Why does the Philippines region starts with A?
Why do airports in Izmir have
LTBx prefix?
Did ...
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0answers
302 views
How to know that single engine aeroplanes are not allowed to depart on the TETAN SID?
I'm studying for my IR exam and came across another tricky AIP question.
Which of the following statements about the TETAN 1A standard departure chart are correct?
Single engine aeroplanes ...
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1answer
525 views
What are the ICAO GNSS waypoint naming conventions?
I'm curious about ICAO naming conventions regarding GNSS and RNAV waypoints. Would I be correct in assuming that all GNSS area waypoints are 5 letters, and RNAV waypoints are 6?
What about waypoints ...
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1answer
182 views
Does a straight missed approach require all turns to be less than or equal to 15 degrees?
I am studying ICAO's PANS-OPS 8168 manual, and I am having trouble understanding the criteria applied to straight and turning missed approaches. In the manual, it clearly states:
I-4-6-2 Types of ...
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66 views
According to ICAO, which rules are applicable to SBAS Non-Precision Approach Procedures?
I am studying the Satellite Based Augmentation System (SBAS) from PANS OPS manual 8168, Volume II, sixth edition, and I have a problem concerning the criteria of SBAS-NPA.
In Part III, Section 3, ...
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1answer
462 views
who owns the abbreviated name of an airport [closed]
is the name of an airport such as LAX the act of the FAA or the ICAO? from reading, it looks as though the process starts at the ICAO as a recommendation, then is adopted by the FAA?
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107 views
Migration from AFTN to AMHS?
My question is:
Is there any obligation from ICAO about migration from AFTN to AMHS? and If that's so, what are deadlines? Any ICAO doc about this?
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1answer
310 views
Is separation provided in class F airspace?
According to the Wikipedia page on different airspace classes, separation is provided for IFR/SVFR to other IFR/SVFR in class F airspace. In ICAO Annex 11 from 2018 (p.36 in the pdf file), I can't ...
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1answer
199 views
How does the ICAO VOR separation apply to reciprocal radials?
If two aircraft are on VOR radials that are apart by 15 degrees or more and one aircraft is at least 15 DME out, they are considered laterally separate. I read this rule in ICAO documents but my ...
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1answer
346 views
How to correctly interpret the taxi procedures in ICAO Doc 4444?
I have a question to ICAO Doc4444, Chapter 12.3.4.7, Taxi procedures for departure, c).
My question is how to interpret the following, knowing that words in parentheses are mandatory, and words in ...
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1answer
134 views
Where does it say that type certificates are required?
I am doing research and looking for a regulation (from FAA, Transport Canada, ICAO or anywhere else) that explicitly states that a type certificate is required for aeronautical products (aircraft, ...
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1answer
172 views
What is an "unsafe airline"? [closed]
Question:
Is there any internationally accepted definition for what an "unsafe airline" is based on objective criteria (e.g. fatalities per million passengers) ?
Or is there an international standard ...
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1answer
356 views
Are there countries where not all plane crashes are investigated (even if deadly)?
background information
I was struck by the news of this deadly plane crash on 20 Dec 2018 which claimed 8 lives and apparently is not investigated as the plane and its potential survivors were not ...
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0answers
168 views
How long does it take for a new FIR to be created by ICAO
How long does it take ICAO to create/approve a new Flight Information Region(FIR)?
Occasionally FIRs are split because of various reasons. The question is how long ICAO takes to approve the new FIRs ...
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136 views
How do aviation regulatory bodies relate to each other? [duplicate]
I am trying to make a overview how regulatory bodies in aviation safety interrelate. Maybe something like a hierarchy. I would start with ICAO and IATA, but where comes then for example FAA, CAA, LBA?...
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1k views
What is the difference between APV I and APV II?
Been reading all these ICAO documents about APV I and II and none of them clearly describe (from a pilots perspective) the difference. Please help
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2k views
List of all FIR and their authorities [closed]
Wikipedia has this page https://en.wikipedia.org/wiki/Flight_information_region containing a table of all FIR (with ICAO codes) and their respective authority countries.
Is there any place where I ...
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1answer
143 views
If the number of flights in the world exceed 2^24 how will ICAO allocate the address to the flights? [closed]
What is the approximate number of commercial flights in the world as of now?
If the number of flights do exceed will they use the concept of frequency reuse in cell phones(dynamic allocation of ...
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1answer
602 views
What are the radius of containment (Rc) and horizontal protection limit (HPL) and how are they related to Type Code?
In ICAO Document 9871 (Technical Provisions for Mode S Services and Extended Squitter) page 30 they have mentioned it in the form of a table. But they haven't explained HPL and Rc in detail.
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1answer
388 views
What is the difference between ICAO and non-ICAO flight address?
In document 260B, "Minimum operational performance standards for 1090Mhz Extended Squitter", on page 47 of the pdf, in the DF18 format they have mentioned for a particular CF(code format), "non-ICAO ...
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248 views
What are the requirements to become a language proficiency examiner?
What are the requirements to become a language proficiency examiner? Does the person have to be a pilot? Does it have to be a flight instructor?
What kind of language proficiency rating do they have ...
