Questions tagged [ground-operations]

Servicing an aircraft on the ground before or after flight

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14
votes
2answers
3k views

Is it common for aircraft tugs to work from under the aircraft?

I came across this photo showing a tug attached in a way I have never seen before. I assume it was used to allow the aircraft closer to the terminal. Did this require special equipment or ...
7
votes
2answers
310 views

How do airlines bring spare parts to aircraft stranded outside their main facilities?

No professional relationship with aviation. Just an avid follower. I guess it depends on location/part availability, etc, but looking for what typically happens. For the purpose of the question, ...
4
votes
1answer
234 views

Is it allowed to start engines during push-back?

Is it allowed, considered safe, and done, to start the engines while the aircraft is moving under the push-back power? On one hand it seems like a big time saving, on the other hand the running ...
6
votes
2answers
123 views

How does the 3 pin ground power connector (AN2551) work?

I understand the premise of the 3rd (smaller) pin (top of the image) is to delay switching power until the two main pins have made positive contact with the aircraft socket on plug insertion; and ...
22
votes
3answers
11k views

Why do airliners park with the nose facing the terminal?

A few other questions have touched on why we don't board airliners from the front and back at the same time. My question is why is it that we choose to board at the front, rather than park the ...
11
votes
3answers
571 views

What was this vehicle doing?

On a trip a few weeks ago traveling out of Charlotte (CLT), I took this picture of a vehicle at the airport. Our plane was fueled as we were about to board but due to various factors, boarding didn’t ...
0
votes
0answers
35 views

What are the factors that affected flight minimum turn-round Time(MTTT)

The minimum turn-round time (MTTT) is the time the aircraft parked on the stand. It can depend on aircraft type, possibly type of stand. Are there any other factors can affect the MTTT?
8
votes
0answers
233 views

How can luggage be lost if it has a bag tag? [closed]

I lost a bag on a flight from BKK -> ARN -> CPH two weeks ago. I immediately filed a report at CPH when the bag hadn't arrived after more than an hour of waiting. Since then there has been no updates ...
2
votes
1answer
186 views

What is the difference between “Bay” and “Stand”?

When should we use the word Stand and when Bay for ATC taxi clearance?
0
votes
1answer
54 views

Is there a difference in use of external lights for taxi in/out or takeoff/landing?

Will there be a different light pattern (like turning on/off different exterior lights) between taxi in and taxi out, and between takeoff and landing?
0
votes
1answer
88 views

External Batteries [closed]

As a part of a project for a class we were tasked with trying to cut emissions/energy waste of airplanes. Now we've realized that running the apu on the ground at the gate and taxiing is a serious ...
28
votes
1answer
4k views

Which (if any) is the “most major” airport / field / strip on Antarctica?

Which airport (/field, /strip, /skiway) is the "biggest", "most supported" on Antarctica? So, has the most permanent staff (do any?) has the most runway facilities such as say runway lights, ...
2
votes
0answers
125 views

What role does this ground crew member fulfill?

At the Miramar airshow a couple of weeks ago I noticed that in addition to the crew chief of each Blue Angel there was one additional individual standing behind the crew chiefs between aircraft #3 and ...
14
votes
1answer
417 views

What's the plug used on airliners for ground power?

What's the plug pair called? What's the ISO/whatever standard involved? What do they look like close-up? Is it pretty standard today worldwide? Is the plug identical for the hugest airliners as for ...
9
votes
1answer
677 views

Are Ground Crew Airline or Airport Personnel?

Are ground crews (baggage, tug operators, fuel, aircraft parking guides, etc.) hired by the airline or by the airport authority? I’ve always been curious. What are the norms worldwide vs US? Small ...
0
votes
1answer
53 views

How to calculate on ground aircraft yaw rate knowing the longitudinal speed and inferred yaw angle

Please consider the following scenario: a generic aircraft is on-ground taxing at 50 feet per second (~15.25 m/s, ~29.5 knots) The pilot inferred 20 degrees of yaw How can I calculate the yaw rate ...
3
votes
1answer
148 views

What type of jack is the flight interphone on transport category aircraft?

Recently became an A&P and part of my job is to be on the ground communicating to the pilots during push backs. Started shopping for a headset and have seen various ones with different adapters ...
2
votes
0answers
189 views

Do visual docking systems improve safety?

Are there any studies that shows A-VDGS (Advanced Visual Docking Guidance System) is improving the safety of aircraft movements on airports?
3
votes
2answers
286 views

What needs to be considered when changing a tire during boarding/deboarding?

Passenger aircraft tires are physically inspected by the cockpit crew member or technician after each landing or before take-off, that the tire may have been cut or punctured as it may have hit ...
5
votes
1answer
359 views

One man push-back

Towbarless pushback operation of a passenger aircraft is generally done with at least 2 people. The first person (walk-out assistant) communicates with the cockpit crew members and observes the ...
2
votes
1answer
791 views

Why is there always a fire truck present before refuelling?

Whenever I fly within Europe, I notice there is always a fire truck present for refuelling before takeoff. Is this standard procedure for every flight in commercial aviation? If yes, is this a global ...
5
votes
2answers
315 views

What is a metering frequency and why would an airport have it?

I just read a post from a pilot complaining about how he thought a metering frequency was useless. It has something to do with being on the ground at an airport. What is it, what purpose does it ...
0
votes
1answer
244 views

How is the load & trimsheet form sent to ACARS?

After the last passengers and baggage are loaded onto the aircraft, the pilot in command is given a form called load & trimsheet which shows the passenger/baggage distributions, total weights and ...
3
votes
1answer
168 views

Is there a Risk of Tail Tipping during Push-back of a passenger aircraft?

I remember that there were countless incidents occurred in which the aircraft sits on the tail as the aircraft was heavily loaded at the back of the cargo and/or cabin compartments or the cargo ...
27
votes
3answers
5k views

How could the B-29 bomber back up under its own power?

I was watching some footage of the Enola gay I was interested in the part where the plane was backing up over the bomb (starts around 18:27). It appears to be doing ...
0
votes
1answer
247 views

Are there surveillance cameras in aircraft cargo bays?

I've heard that there are cameras on the fuselage and wings of some passenger aircraft. Is there a similar surveillance system in-built at the cargo bay/compartment of a passenger aircraft? During ...
22
votes
3answers
6k views

Why does the headset man not get on the tractor?

As far as I can see, the pushback operation of a passenger aircraft is carried out by a similar application at many airports. It's a towbarless tractor and driver who pushes the aircraft together with ...
3
votes
0answers
166 views

How should ground crews act to safely extinguish an airliner's brake unit fire?

When the brake unit was overheated and had just begun to catch fire due to excessive braking because of long taxi distance upon arrival, the ground personnel (not firefighters) made the first ...
6
votes
2answers
554 views

Does the person directing the plane to parking not risk getting ingested by a jet engine?

According to answers in this post, a jet engine can suck a human into its engines, even on idle power. Aircraft use their engines post landing taxi and into their parking space, and I notice people ...
2
votes
0answers
190 views

Can 7 AKE containers adjacent to each other be securely locked in a 777-300ER's aft cargo bin?

Is it possible to securely lock 7 AKE (LD3) containers adjacent to each other in a Boeing 777-300ER's aft cargo bin from position 31 to 41 (41 included)? According to my experience it's impossible to ...
1
vote
1answer
2k views

What's the difference between CPM and LDM?

I know CPM is cargo pallet message and LDM is load distribution message, but what's the difference between them ?
0
votes
1answer
126 views

Does the FAA allow a jet bridge to approach an aircraft that has engine #2 running?

Does the FAA allow a jet bridge to approach an aircraft that has engine #2 running?
0
votes
0answers
178 views

What is DPI? How is it Useful? And How does it work?

I have heard of DPI (departure planning information) status for a flight. I wanted to know what is this Status for? How is it computed or determined? What are the different status for it if any and ...
3
votes
1answer
322 views

What if the tower Is obstructed by clouds?

I know towers use radar to watch aircraft, obviously. But what about ground controllers? What if their view is obstructed by a low cloud level/fog? Is there such a thing as ground-based traffic ...
2
votes
1answer
170 views

Are there specific names for airport vehicles used for de-icing?

Do de-icing vehicles used at airports for de-/anti-icing procedures have special names? I-ve searched the internet but have not found the exact names of these vehicles.
3
votes
1answer
265 views

How do typical ground marshaling signals differ for helicopters?

There are common hand signals used by ground crew for fixed wing aircraft like 'taxi forward', 'spin up engine #1', 'turn right', or 'stop', for example: At most airports, general helicopter traffic ...
1
vote
1answer
221 views

Can an increased current rating of a Ground Power Unit damage an aircraft? [closed]

Assuming you are working on an Aircraft, where the Ground Power Unit (GPU) is rated at 28V DC with max. 1000 amperes. What is the danger involved if your are to increase the current rating of the GPU ...
5
votes
1answer
254 views

Any FAA or other regulations prohibiting taxiing between parked aircraft?

So the other day I was getting checked out at a local FBO, after returning to the ramp, instructor told me to taxi between two parked (tied-down aircraft). It was a tight squeeze but I taxied at about ...
10
votes
1answer
482 views

Denver International Airport pneumatic tube systems

Wikipedia says: Denver International Airport uses many pneumatic tube systems, including a 25 cm diameter system for moving aircraft parts to remote concourses, a 10 cm system for United Airlines ...
4
votes
2answers
245 views

How is the type of deicing fluid chosen and how much time is required for application?

From my understanding there are 4 different types of deicing fluids. How exactly is it determined what type of fluid needs to be used? How much delay does every type of fluid cause on average? What ...
16
votes
3answers
6k views

Why ground a plane while fueling?

Why does a plane need to be grounded while fueling, but we never ground our cars? Does the potential for a spark magically exist for an airborne vehicle but not for an earth bound one?
4
votes
0answers
77 views

What is the ground clearance area required for certification for a blimp/airship that needs to be tethered?

Does anyone know how much ground space needs to be allocated for keeping a blimp/airship tethered? I assume it is likely a circular area with the diameter being (2 x total length) + safety factor.
2
votes
1answer
487 views

How many crew members load and offload luggage on an Airbus A380?

What are the standard ground needs of a modern double-decker airline. How many crew members load and offload luggage on a modern double-decker airliner on any typical trip?
4
votes
1answer
573 views

What is the minimum and maximum number of jet bridges used on an Airbus A380?

What is the minimum and maximum number of jet bridges used for embarking and disembarking on a typical Airbus A380 trip and why?
1
vote
1answer
5k views

What is the difference between a Stand and Gate in Airports? How do they differ ?

I have seen Aircrafts having been assigned a Stand and Gate, So wanted to know whether the stand and gate are same physical location of airport or they are different but have link between them.
38
votes
1answer
7k views

Why don't El Al 747's stay at the gates at JFK?

I was recently travelling through JFK in New York City and saw the El Al 747, presumably arrived as ELY1 and departing as ELY4, sitting on the apron near terminal 4. What I saw was similar to as shown ...
0
votes
0answers
407 views

Does the safe taxi distance vary behind jet types for light aircraft?

It would seem a light aircraft taxiing behind a business jet could be closer than a B747. Perhaps there is a law (country or international) regulating power setting of a jet taxiing. One authors ...
7
votes
3answers
2k views

Why not tow aircraft instead of single-engine taxi?

To save costs, budget airlines could potentially eliminate the single-engine taxi that is standard. Companies are looking into things like electric motors on the wheels of airliners for taxi, which ...
9
votes
1answer
233 views

Airbus towing: is it necessary to switch on the Y HYD pump?

So, somehow our operations came up with a new requirement: if one of our A320 or A340 is being towed, we are supposed to switch on the Y ELEC pump (if the engines are off). This shall prevent ...
13
votes
3answers
2k views

Why aren't there brake lights on aircraft?

Why don't aircraft have brake lights so you can see when an aircraft in front is slowing down? I know there are air traffic controllers to control aircraft but they cannot do much about an aircraft's ...