Questions tagged [air-traffic-control]

Air Traffic Control (ATC) is a service of ground-based controllers that directs and coordinates aircraft to improve safety and efficiency.

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273 views

Can I listen to control tower frequencies on a ham radio legally [duplicate]

Is there a frequency I can tune into to listen to airport I’m in Durham by RDU AIRPORT and would like to listen in on a ham radio only legally
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Is there a minimal approach speed for airliners during rush hour?

For busy airport, sequencing can be complexe. If the ATC put all aircraft in front of each other with the correct separation (which can be really small for busy airports) in final, if the airliners' ...
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How to match ATC requirements to work in EU?

My Brazilian boyfriend is finally planning to move into the EU zone (he actually got an Italian passport). He would be glad to keep his work as an Air Traffic Controller but despite his 10 years ...
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How do Density Altitude affect Taxi-Out Time?

To keep things brief, for a data exploration project, I calculated density altitude using (https://www.weather.gov/epz/wxcalc_densityaltitude) for a couple airports and used flight statistics from ...
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2answers
109 views

Why did the tower at a Class D airport not set me up with flight following on the ground?

On a trip I had a few days ago I had contacted the ground controller at Santa Fe Municipal (KSAF), a Class D airport, to arrange for a VFR departure to the southwest and requested VFR flight following....
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201 views

What do these symbols indicate on the ATC display?

I just got found ATC controller display on the internet and could you tell me what are these symbols indicating? For example the ones I highlighted in red?
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1answer
101 views

How could I match the surrounding traffics displayed with their radio communication

If I have a traffic display I could see the traffics in proximity of my aircraft and meanwhile I could listen to their voice communication. So how could I match the traffic shown in the display with ...
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2answers
187 views

When should I notify ATC when I notice that I may have conflicting traffic?

Let us say I am flying at FL100 with heading 360 and I noticed that ATC just cleared another aircraft to climb to FL100 with heading 270, and we may have a converging path if we proceed with our ...
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56 views

Are there any scenarios that a controller clear different aircraft at the same altitude? [duplicate]

In the real world, are there any scenarios that the controller clear the same altitude or flight level to different aircraft at the same time?
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1answer
283 views

What are ATC-side procedures to handle a jammed frequency?

A few days ago, I was flying into my base airport in the USA with a control tower, and something/someone was jamming the frequency with what the tower thought was a hot mic after I had established ...
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1answer
188 views

What did this ATC call mean?

Audio Clip There is a rwy 24 in this airport. I'm not sure but the aircraft callsign likes 'TBN3BV'. I tried to find what the aircraft type is but I couldn't. Does somebody know what type of aircraft ...
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9k views

What can a pilot do if an air traffic controller is incapacitated?

I watched this video: where a Las Vegas controller is on duty alone and suffers a stroke. The pilots become quite uncomfortable with the situation and basically ...
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2answers
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What did the controller say during my approach to land (audio clip)?

I recorded this ATC audio clip during a recent flight. I'm not sure but he may be saying, 6CP, cancel lining clearance......(missing)....traffic will be in position. Can you complete this ...
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138 views

Is “margin final” an ATC instruction in USA?

I was south-east of the airport and the active runway was 24. The ATC said, "Make straight in and remain south." And then he said, "Margin final, cleared [to] land." What is margin final? I'm an ...
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1answer
112 views

Is there any current and/or upcoming technology that alerts Air Traffic Controllers in case of loss of aircraft separation?

Currently doing an assignment and it to analyse an accident where older atc systems could have been at fault. In 1995 there was an incident where two aircraft came closer than the then current ...
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What is the procedure to follow for “traffic not in sight”?

What would be the proper procedure to follow, when in the pattern or approaching an airport, if ATC gives you the position of an aircraft and you do not have them in sight? Do you just report "not in ...
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Can two aircraft be allowed to stay on the same runway at the same time?

My understanding is that the runway should always be cleared, and occupied by no more than a single aircraft for takeoff and/or landing at any given time. Is there any scenario in which ATC can ...
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What will be the immediate action by the pilot and ATC if any plane blocks the runway while landing?

Suppose, if the Airport has only one runway and one plane is trying to take off at the end of the runway and other plane trying to land from the other end of the runway. Due to any reason if the ...
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What is special about the ICAO Caribbean region for VFR climb/descent?

In the FAA JO 7110.65 that provides rules for air traffic control, the following limitations are listed for VFR climb and descent: 8−8−5. VFR CLIMB AND DESCENT a. In the Houston, Miami, and ...
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Georgian Airways Flight Delay - Did LGW refuse flight and why? [closed]

Hi Our flight was delayed for 8 hours due to bad weather at Gatwick but there was no bad weather. I believe the airline was rejected by Gatwick due to a chance for holding if a storm came in. Is there ...
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2answers
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What is the proper procedure to change VFR altitude when changing heading from east to west?

When you fly from west to east, sometimes your route heads west to avoid obstacles or to clear class B or C airspace. According to hemispheric rule, let's pretend I selected 7500 feet for VFR to the ...
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4answers
171 views

What kind of waypoints/routes are used to prepare a flight plan in practice?

I have noticed that FAA provides data delivery service where both waypoints and ATS routes are available to download. By looking at the files, I realize that there are a variety of waypoints and ...
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114 views

Which commercial aircraft can fly Micro-SLOP procedures?

"Strategic Lateral Offset Procedures (SLOP) are approved procedures that allow aircraft to fly on a parallel track to the right of the centre line relative to the direction of flight to mitigate ...
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May the tower use the runway while an emergency aircraft is inbound?

I have a question regarding an aircraft in emergency. Of course it will have priority for landing but if the position of this aircraft is very far, like for example 20 minutes or more away, would the ...
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3answers
263 views

What is the standard report when pilots exiting and clearing the runway

Let us say I landed on runway 7 and will exit the runway thru taxiway Charlie, is that a standard report like "(Aircraft ID) taxing clear RW7 at Charlie"?
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Are there locations/altitudes with minimum speed requirements?

For example, a slower aircraft operating on the North Atlantic Track System would have an operational impact on surrounding/overtaking aircraft as well as potentially increasing ATC workload to ensure ...
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130 views

Are Transponder Mode A and C still in use?

Are the ATC transponder Mode A and Mode C still in use (according to ICAO or FAA rules)?
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373 views

What was the motivation for revoking the licence to the pilots of Northwest flight 188?

This video describes Northwest flight 188, where two pilots overshot their destination by 150 miles, without contacting ATC for an hour. They cited 'cockpit distractions' as the reason and ...
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1answer
232 views

On ATC's radar, does an aircraft that loses its transponder simply disappear?

If you look at shows like Air Crash Investigation, which surely take some creative license in how events are portrayed, they often portray the disappearance of an aircraft, or specifically loss of its ...
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235 views

Can a commercial pilot decide where to make their turn after departure?

If there aren't published vectors to tell a commercial pilot which heading to take as they climb, can they decide where to make their initial turn on their own or would an ATC always involved in where ...
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80 views

What is the procedure to fill/send/approve a flight plan to the ATS network from outside?

We are planning to develop an app that allows general pilots to fill/send a flight plan to the ATS. We're wondering to know if it is needed to have a regular access (register access or account) to the ...
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3answers
177 views

Do helicopters need a class B entry clearance when air / hover taxiing?

You're a helicopter pilot at a class B airport. You'd like to taxi to another parking spot. The ground controller could either give you a hover taxi clearance or an air taxi clearance, depending on ...
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88 views

Why does the US not have AIREPs?

After looking into aircraft report data at Aviation Weather Center, I realized that PIREP is usually reported inside of US; on the other hand, AIREP is typically reported outside of US. I was ...
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1answer
102 views

What is the definition of “airport boundary”?

While flying in to KBTR in a helicopter, I called tower and stated “10 west, landing south ramp with information Mike”. They responded “proceed to the airport boundary”. When I was closer I got the ...
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2answers
275 views

What is the proper ICAO phraseology to activate a flight plan?

OK, so you have a flight plan filed (over internet, phone, company or however), go to the aircraft and get in the cockpit. So you call the controller and request IFR or VFR as appropriate. What is ...
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0answers
64 views

What is the FAA regulation for the 3 mile / 1,000' separation for a commercial airliner? [duplicate]

I need help finding the Number/Citation for the FAA regulation/order that states commercial airliner separation should usually be at least 3 miles laterally, or 1,000 feet vertically. I cannot find ...
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1answer
216 views

What is a “KALP114A” ATC regulation?

My flight (in Spain) was delayed for 6h and after I submitted the claim the airline worker answered me that it was delayed due to KALP114A regulations imposed by ATC, but I didn't find any info, that ...
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126 views

Are there any cases on record of an aircraft crashing into an occupied air traffic control tower?

Aircraft frequently1 crash, or come close to crashing, from almost every cause imaginable, on or near airports, these being places where aircraft of all sizes take off and land and sleep with many ...
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103 views

What are the Area Control Center (ACC) frequencies for Germany?

I'm looking for the frequencies of all Area Control Centers (ACC) in Germany. What are they, or where are they published?
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320 views

What is the difference between MEL and CDL?

I know the MEL and CDL are the minimum equipment list is provided by the manufacturer, if component missing or damaged means the aircraft must pass the MEL and CDL, I need some suggestions how it was ...
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1answer
96 views

How universal are air traffic control systems, training and practices?

A commercial pilot, especially in the airline industry, is in a role that is essentially the same as that of a pilot who is employed and was trained in just about any other part of the world. Does ...
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391 views

Are requests for an emergency landing ever refused?

Under what circumstances might it happen that a pilot's request to make an emergency landing is refused? Is such a thing known to have occurred?
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538 views

Why is air traffic control done manually by humans?

I'm not a pilot but have a software developer background, so forgive my aviation naivety. From what I understand there have been numerous issues and almost-issues relating to human air traffic ...
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1answer
387 views

Is the taxi route omitted in low visibility (LVP)?

This video shows an auto land into Schiphol during bad weather / LVP (Low Visibility Procedures). After reporting vacated, the ATC instruction is quite short (around 2:45). Simply the gate number. (I'...
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Does ICAO allow continued flight in RVSM airspace after a transponder failure?

If a civil aircraft's transponder fails in RVSM airspace, can it still be allowed to fly in RVSM according to ICAO? And could it be allowed to fly in class A airspace, according to ICAO?
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2k views

Do seaplanes need to get clearance for takeoff?

Do seaplanes need to get clearance for takeoff? Do they have ATC? How do seaplanes get clearance to takeoff?
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154 views

Why is it necessary to fly in visual conditions to certain unmanned airstrips?

I have come across certain unmanned airstrips where only VFR flight is allowed not IFR? I wonder what can be the possible reasons for that?
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190 views

Does ATC clear IFR helicopters for a visual approach if landing at a helipad on a high-rise?

I'm guessing that most helipads on downtown high rises don't have any instrument approaches. If a helicopter is on an IFR to a helipad without any instrument approaches, does ATC just clear them for ...
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2answers
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How many aircraft does an ATC controller usually handle at the same time?

My question relates to the question What is the maximum number of planes a controller can control?, which asks about the maximum limit. One comment indicated 35 aircraft per hour for en-route segment. ...
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1answer
57 views

In actual practice, do ARTC Center personnel generally follow the rule that a SVFR clearance may be granted in E2 airspace but not E4 airspace? (US)

In actual practice, in the US, do ARTC Center personnel generally follow the rule that a SVFR clearance may be granted in E2 airspace ("surface areas designated for an airport") but not E4 airspace ("...