Questions tagged [icao]

The International Civil Aviation Organization is a UN body that develops international aviation standards.

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7
votes
3answers
387 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 ...
6
votes
1answer
2k views

Where is the formal ICAO flight plan text format specified?

I want to write a parser for ICAO format flight plans, like the one shown below. ...
23
votes
7answers
44k views

Where to find a waypoints/fixed points, navaids and airports database?

I wonder if it is possible to download a database with waypoints, navaids, airports and airways between them. I've been working with AIP documents but it's difficult to get raw information from them ...
1
vote
1answer
244 views

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 ...
10
votes
1answer
2k views

Are airline ICAO codes unique?

Tiger Airways Singapore's IATA code is TR while Tiger Airways Australia's one is TT, but the ICAO code for both is TGW. I thought that the ICAO codes are meant to be unique from one airline to another,...
12
votes
3answers
24k views

How to get registration from ICAO 24 bit code?

The description of PlanePlotter claims that it can determine the registration letters from the ICAO 24 bit address algorithmically for some countries. The only thing i got so far is how to get the ...
1
vote
0answers
62 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.
3
votes
3answers
256 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 ...
3
votes
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) ...
0
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0answers
57 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 ...
1
vote
1answer
4k views

What are the ICAO equipment codes for those Garmin units? [closed]

What are the ICAO equipment codes for those Garmin units? Garmin G500 / 750 / 650 WAAS navigators?
33
votes
1answer
72k views

When do we use IATA codes and when do we use ICAO codes?

I found on this website several questions speaking of IATA, ICAO and airports codes. The fact that two identification codes for the same airport exist means there are cases where you use one, and ...
8
votes
4answers
14k views

What is the difference between ICAO Annexes and Documents?

I have gone through many ICAO and aviation related sites, but I still can not understand the basic difference between annexes and docs. What is it?
10
votes
3answers
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 ...
3
votes
1answer
133 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 ...
20
votes
4answers
94k views

What is different between a Cat IIIA, Cat IIIB, and Cat IIIC ILS approach?

In terms of aircraft equipment, approach minimums, procedural differences, and anything else relevant, how do the 3 types of a Cat III ILS differ from one another?
2
votes
2answers
108 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?
10
votes
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, ...
1
vote
1answer
105 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 ...
0
votes
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?
16
votes
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,...
2
votes
1answer
344 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 ...
4
votes
4answers
13k views

Is there a definition of light/medium/heavy aircraft?

I'm surprised this hasn't been asked before but I couldn't find it by searching. For separating arriving aircraft, ICAO PANS-ATM-Doc 4444 Air Traffic Management refers to aircraft as "LIGHT", "...
10
votes
2answers
531 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 ...
3
votes
2answers
428 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 (...
10
votes
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 ...
5
votes
1answer
942 views

What ICAO codes are reserved for TIS-B use?

Using my ADS-B receiver, In the past few months I've seen a lot of what I think are TIS-B contacts. They seem to cycle through a few different ICAO ID prefixes, but I see a lot that are of the form (...
4
votes
1answer
135 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 ...
24
votes
5answers
6k views

May an emergency aircraft land on a closed runway?

Let's say that you're on approach to a remote airport to refuel (for arguments sake, Funafuti International Airport, Tuvalu), with 1-2 hours of fuel remaining in your aircraft. Contacting ATC to ...
0
votes
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.
2
votes
1answer
141 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" ...
12
votes
3answers
4k views

Can a pilot with an ICAO Multi-Crew Pilot License fly an airliner into the U.S.?

In the question How do non-US pilots get the hours necessary for an ATP?, the question was raised of whether we have 250 or 500 hour foreign pilots flying airliners into major U.S. airports. DeltaLima'...
5
votes
1answer
2k 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 ...
2
votes
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 ...
5
votes
2answers
234 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 ...
1
vote
2answers
472 views

Is the IOSA useful even if not all airliners are IATA members?

Given the two facts: According to wikipedia, the IATA represent a little more than 80% of available seat kilometers. It makes sense as some airlines are not IATA members. Under each region over the ...
0
votes
1answer
154 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 ...
2
votes
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 ...
5
votes
3answers
240 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 ...
0
votes
2answers
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 ...
3
votes
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?
2
votes
1answer
236 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 ...
22
votes
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 ...
8
votes
2answers
854 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 ...
4
votes
1answer
181 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 ...
8
votes
0answers
295 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 ...
2
votes
1answer
524 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 ...
1
vote
0answers
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, ...
1
vote
1answer
451 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?
2
votes
0answers
106 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?