Questions tagged [icao]
The International Civil Aviation Organization is a UN body that develops international aviation standards.
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ACI airfield maintenance handbook [closed]
I am looking for one who can offer help by providing the new airport council international publication (Airfield Maintenance Handbook).
Please contact if you have soft copy and you are volunteering to ...
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Why do heli PC2 operations require highest obstacle clearance
In designing a helipad I notice that the Australian requirements (AC139.R-01) for obstacle clear gradients specify that the slope category (12.5% slope) generally applies to PC2 operations, whereas ...
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Are airport codes with digits valid or pseudo ICAO codes?
Official definition states that an ICAO designator consists of 4 letters (A-Z). But there seems to be quite a lot of airports in the U.S. that don't follow this guideline. Of those, about 300 ...
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What is the validity of an ICAO frozen ATPL? [duplicate]
I would like to know what is the validity of a frozen Airline Transport Pilot License under ICAO regulations?
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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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Where can i find official list of all ICAO Docs published?
ICAO Docs are very essential for pilots to completely understand a concept and it is increasingly difficult to find relevant resources in internet.
It would be better to know the list of Docs ...
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Why do some airports not have ICAO codes?
This is a follow up to my previous question What do numbers signify in airport codes?
In that case, I was asking why my local airport (Markham Airport) had a number in its code (CNU8). I later ...
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What differences are introduced between ICAO Annex 10 volume IV amendment 85 and amendment 89?
What changes have been made to ICAO Annex 10 volume IV (Surveillance Radar and Collision Avoidance Systems) between amendment 85 and amendment 89?
I only have access to amendment 89, but I have some ...
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What is the technical reason behind why the FAA standard uses a 1000 ft aiming point and much larger runway numbers than the ICAO standard?
FAA and ICAO standards, respectively.
If the larger FAA runway numbers are for easier identification, why wouldn't ICAO also adopt this feature to enhance safety?
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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.
Where did ICAO get the letters from?
Why does the Philippines region starts with A?
Why do airports in Izmir have
LTBx prefix?
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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 (...
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Why are there no new major aircraft in ICAO Aerodrome catagory D?
So the 757, 767, A300 and A310 all were in ICAO cat D (mainly restricted by a wingspan between 36-less than 52m). Now though all these aircraft are discontinued, and there is no new designs looking to ...
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ICAO ATPL Conversion to Transport Canada
I am a former Captain for PALExpress, an airline in the Philippines. I have a valid CAAP ATPL and am rated for the DHC8-400 and sadly was part of the retrenchment program for Philippine Airlines last ...
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What's the purpose of categorizing alternate airdromes?
Why do we have alternates in categories of take off alternate, enroute alternate and destination alternate. Does this really need to categorize in groups or it's just pointless issue?
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Why isn't an LPV SBAS approach considered a precision approach according to ICAO?
According to ICAO's classification, LPV SBAS approach is in the APV group, because it doesn't meet some specifications for precision approaches. But what exactly does it not meet?
Glossary:
LPV: ...
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What transponder code is assigned to Dream Chaser space-plane?
Dream Chaser is scheduled to start flying cargo missions to the space station in 2022. And, Sierra Nevada Corporation claimed it has the capability to land anywhere in the world.I have found it has a ...
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How do I find out if my aircraft satisfies a particular ICAO equipment/surveillance/PBN code?
I have a new, G1000-equipped C172S that just arrived, and I’m trying to figure out the specific ICAO equipment/surveillance/PBN/etc. codes for the aircraft.
I’ve been trying to find out where to find ...
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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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What are the ICAO PANS? What are their contents?
There are how many I.C.A.O. PANS? What are their basic contents? I have tried a lot in internet, but could not find out.
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What is the ASTERIX terminology for an atomic piece of information?
The ASTERIX standard defines the smallest piece of metadata information:
Data Item: The smallest unit of information in each Data Category.
And the implementation equivalent:
Data Field: ...
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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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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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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.
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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 ...
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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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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,...
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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 ...
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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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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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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?
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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 ...
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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?
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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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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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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?
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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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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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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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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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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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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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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", "...
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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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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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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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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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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 ...
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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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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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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'...
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