LOSS OF ALL RADIOS | United Airlines B764 Loses Radio Communications, Returns for Safe Landing

Рет қаралды 35,616

8 ай бұрын

On November 11, 2023, a United Boeing 767-400, performing flight UAL992, had just taken off from runway 30 at KIAD for Barcelona, Spain when their radios failed after being told to contact Departure. The flight crew acknowledged the takeoff clearance but did not respond when told to switch to the Departure frequency.
UAL946 departed KIAD shortly after UAL992 and were asked by ATC to try and get in touch with UAL992.
Eventually, the crew of UAL992 used ACARS to advise of the loss of radio communications. The entered a hold just west of Richmond, Virginia and after a short time returned to KIAD for a safe landing on runway 1R.
#aviation #realatc #avgeek
____________________________
IMPORTANT:
The main purpose of this video is educational, i.e. to provide example situations for people who want to become pilots or air traffic controllers and to provide them with information. In addition, the aim here is to provide current pilots and air traffic controllers with access to radio conversations around the world so that they can think about how they should behave in situations they are likely to encounter in the future.
While preparing the content, I follow important aviation events and news from around the world. I check whether I can access the radio conversations by looking at the date and time zone of these events.
Then, I listen to the conversations over and over again to prepare subtitles and note down the relevant parts. Finally, I prepare an animation or get it from tracking websites and put it all together.
____________________________
► e-mail: theflightrecords@gmail.com
Radio conversations: www.liveatc.net/ (appretiate the LiveATC's support)
Map: www.google.com/maps/

Пікірлер: 119

@gregorymcarter 8 ай бұрын

As a former 911 dispatcher for 10 years, one of the hardest things of working on the police or fire radio was not being able to reach a unit in the field - the fear was real. With what is going on in our world, I would've assumed the worst :/ Kudos to the ATC and flight crew.

@Boodieman72 8 ай бұрын

That's why aircraft have transponder codes that the flight crew can set to a loss of radio code, 7600 and every controller all over the world knows what that means.

@gregorymcarter 8 ай бұрын

@@Boodieman72As do Public Safety agencies, of sorts. The Emergency Identifier on their radios, however, you can't always rely on that should an emergency happen. Thanks for the squak reminder though! :)

@normiepuppet 8 ай бұрын

and thats why you're AnxietyGreg

@gregorymcarter 8 ай бұрын

@@normiepuppet Pretty much :)

@SeligTiles 8 ай бұрын

“With what is going on in our world” is a usual tactic used by the police to trick someone into obeying an unlawful order such as ID’ing without RAS or trying prevent someone from doing photography in public or trespassing someone from public property for exercising constitutional protected activity.

@vivawolf 8 ай бұрын

Scary! Although It's good to know there's procedures in place to handle this kind of thing safely.

@malahammer 8 ай бұрын

Not scary! As you say, procedures covered it.

@zachansen8293 8 ай бұрын

4:05 things you don't want to hear as a pilot "hope you have lots of gas"

@mikelp72 8 ай бұрын

‘We had Taco Bell for lunch so we are all set up here.’

@kathleenegan6658 8 ай бұрын

😂😂@@mikelp72

@TitaniumTurbine 8 ай бұрын

⁠@@mikelp72 “Not just us either, Taco Bell generously provided catering to our entire flight at the gate… they said something about a science experiment”

@TimTVOfficial 8 ай бұрын

Did the tower use its light beam?

@MrSupro 8 ай бұрын

Maybe they should carry a sportys hand held and a window stick on antenna just in case 😅those 5 watts have saved many a pilots lives.

@617dupree 8 ай бұрын

3 air band radios, plus possibly a HF radio failed as well. That is scary. I feel like I'm missing something.

@rodcoulter997 8 ай бұрын

Did ATC receive the 7600? What was the reason for the COMM Failure? Anybody know?

@efoxxok7478 8 ай бұрын

Yes, when the controller said he was squawking NORDO that’s beacon code 7600. NORDO means No RaDiO

@Ranger-tq9iy 8 ай бұрын

Imagine the headache this caused for everyone 😂

@abcdfgh4321 8 ай бұрын

Did they use the light gun to bring him in?

@idkjames 8 ай бұрын

Would be SOP. Local sends gun signals to all aircraft NORDO. Someday we will probably get CPDLC in the TRACON. Would help with this.

@N1120A 8 ай бұрын

They'd absolutely use the light gun.

@fastfiddler1625 8 ай бұрын

Oh man. Over the DC area of all places. It's interesting that something managed to kill VHF 1 and 2 but left VHF 3 operating for ACARS.

@443DM 8 ай бұрын

Probably sat-enabled for a transatlantic crossing. My surprise would be HF also being down.

@fastfiddler1625 8 ай бұрын

@@443DM ah yeah. I don't fly oceanic, so I'm ignorant to all that.

@theharper1 8 ай бұрын

Seems like lazy radio procedure for no aircraft ID from UA946 on multiple transmissions.

@Republic3D 8 ай бұрын

The only question I have is how did they know which runway to land on? I'm guessing UA992 went straight to the hold fix, then started a STAR for Runway 1R and ATC would see which runway they would line up for. Or UA992 somehow did know what landing runway was active.

@dmsdmullins 8 ай бұрын

They literally sent them text messages through a system called ACARS. Look it up.

@TimAyro 8 ай бұрын

Digital ATIS through ACARS will tell us what runways to expect. And the heavy probably picked the longer of the multiple listed.

@Republic3D 8 ай бұрын

@@dmsdmullinsI know what ACARS is, I just didn't think they managed to get it working. The last thing we knew was that 946 tried to get company to contact 992.

@m4nu507 8 ай бұрын

ATIS has active landing runways, since they were overweight the most obvious choice is the longest of them.

@Factory400 8 ай бұрын

Super curious how multiple radios, power busses, headsets, antennas could fail without other issues.

@tompsheridantsheridant7354 8 ай бұрын

ALL MADE IN CHINA, SO, THERE YOU HAVE IT.

@Pereux0 8 ай бұрын

@@tompsheridantsheridant7354 Germany but okay

@ImperrfectStranger 8 ай бұрын

@@Pereux0 Or USA... Rockwell Collins? Honeywell? Bendix? Allied Signal?

@Factory400 8 ай бұрын

@767bob Uhhhhh.....what? The little GA planes I fly have multiple isolated busses with a radio on each. Guessing an airliner is a bit better than that. Single points of failure in critical systems is frowned upon.

@ImperrfectStranger 8 ай бұрын

@@767bob Bob, I'm looking at 767 wiring schematics at the moment. The audio selector panels have a dual power source (Bat Bus and R Bus for the Captain, for example). Also, you don't need the flight interphone to transmit on VHF or HF. The mics feed into the audio sel. panels then to the individual radios. The ACARS was working, so at least one of the VHF transceivers was working. Also, they seemed to be hearing what ATC was telling them. Weren't they squawking? Definitely a strange one. I may have come across this before, but I can't remember the solution, although I do recall that there used to be strange effects if the observer didn't have his mic jack plugged all the way in.

@craigbmm4675 8 ай бұрын

they dont have back up radios ? i know about Acars .. but no backup radios ?

@Gaby5011wastaken 8 ай бұрын

Not sure about UA, but my airline has 3 radios. I assume UA has 3 as well.

@felix_d5412 8 ай бұрын

They have at least two radios, this was just a very rare event of all of them failing for whatever reason.

@Boodieman72 8 ай бұрын

ACARS? They probably used the transponder and set the code to 7600

@alejandrohortonio 8 ай бұрын

Aircraft Communications Addressing and Reporting System.

@Boodieman72 8 ай бұрын

@@alejandrohortonio I know what it means but thats not the way pilots let ATC know of a radio failure.

@the_flight_records 8 ай бұрын

They used 7600, you can see my note 01:12

@mytech6779 8 ай бұрын

Dispatch can still try to send text information through ACARS. But the success would depend on the installation, some ACARS uses satellite some uses an embedded signal in the normal VHF radio freqs.(or switch between).

@moonrunner5 8 ай бұрын

Light Gun Signals. 14 CFR 91.125; AIM 4-3-13

@BobbyBattista 8 ай бұрын

If radios and ACARS aren't working, would commercial pilots ever use their cell phones or the in flight wifi to communicate? I know there are procedures to use lights and waving the wings, but I figure if you're low enough a cell phone call would be more ideal.

@jaysmith1408 8 ай бұрын

It’s been done, but they’re bound by embedded procedures, so I highly doubt they’d use them.

@peileii 8 ай бұрын

@@jaysmith1408 In an emergency, pilots are allowed to use any and all resources and break any rules necessary to meet the nature of the emergency, so yes, they could use a cell phone. Unfortunately, getting a reliable, steady signal would be difficult if not impossible.

@efoxxok7478 8 ай бұрын

Pilots would only be able to call their company. There are entirely too many facilities for them to carry enough numbers to cover all situations. If imagine in this case an ACARS message to dispatch led to a phone call to the Travon, followed by a return ACARS message assigning them an approach and they just cleared everybody out of the way.

@chrisschack9716 8 ай бұрын

@@efoxxok7478 Took me 2-3 minutes to find at least some number for Potomac Approach ... granted, it's for clearance/delivery at satellite airfields, but they'll get word to the right person VERY fast, I'm sure.

@AndrewAbraham83 8 ай бұрын

Probably not. He leveled at 10,000. That's way too high for a cell signal. Generally cellphones won't work over a few thousand feet up

@Molon_Labe1776 8 ай бұрын

The real question is if fighter jets were scrambled for a NORDO & being so close to D.C.

@jyggalag169 8 ай бұрын

Doubtful. Its not a hijacking and theres nothing suspicious about the aircrafts behavior. Everything they did was a rational and reasonable behavior even if it was uncommunicated for obvious reasons. If they acted erratically than yes.

@loudidier3891 8 ай бұрын

How did they know it wasn't a hijacking? The transponder code indicated radio failure but any hijacker with a private pilot license would know that. Time to dive into a building in DC, given the flight path, would have been less than ten minutes. By the time they acted erratically it would have been too late to intercept @@jyggalag169

@marksmith8079 8 ай бұрын

Why do they keep asking to maintian 250 knots- his speec is by reading too fast for holding pattern at that altitude 230 knots.

@slasherfun 8 ай бұрын

That's for UA946, not UA992.

@NoNameAtAll2 8 ай бұрын

sometimes I wonder why radio loss is only 1 code instead of "I can hear you"/"I can't hear you" pair

@johnathancorgan3994 8 ай бұрын

At one point early on you hear ATC say "if you can hear me, ident". There is a button the pilot can push on their transponder that will make their info on the ATC controller's display flash. Then ATC can issue directives or ask questions and the pilot can respond with a button push. In this case there was no reception so they went on to follow standard lost communication procedures.

@dustinandrews3223 8 ай бұрын

That must have sucked for the passengers and crew. All that time waiting and boarding to just turn around...

@moonrunner5 8 ай бұрын

Squawk 7600. CFR 91.185 IFR operations: Two-way radio communications failure. Nice to have ACARS

@gchsbus 8 ай бұрын

The only thing I think I should have seen is for ATC to request they change their sqawk code temporarily if they can hear them. Then they could at least confirm they could receive.

@JayvynRhodes 8 ай бұрын

That’s what they were saying “ident” for

@Republic3D 8 ай бұрын

When controllers says "Ident", it's an instruction for the pilots to push the "IDENT" button on the radio. It causes a blip/flash on the screen of ATC.

@claudest-gelais8456 8 ай бұрын

@@Republic3D On the transponder rather😉

@MeMe-gm9di 8 ай бұрын

As others have said, that's what the ident button is for. It uses the same antanna/radio as the squawk codes and the rest of the transponder, so if they can change the squawk code, they can also ident.

@Republic3D 8 ай бұрын

@@767bobyou could call it a squawk box, transponder, whatever. It's still a radio.

@user-he4ue6is7k 8 ай бұрын

Did they dump fuel? What happens to dumped fuel?

@the_flight_records 8 ай бұрын

They were over-weight, so they needed to dump fuel, I guess.

@As_A________Commenter 8 ай бұрын

If you dump fuel more than a mile above the ground, which is commonly the target, it will atomize in the air. In other words the fuel doesn’t “rain” down on what is below.

@HupfderFloh 8 ай бұрын

So you*can* just fly into a class B without talking to ATC and even land. Got it.

@merlesmith6794 8 ай бұрын

Why didn’t they just use the land line? Probably too cheap for a land line huh. Pilots amirite!!!?

@LtColDaddy71 8 ай бұрын

Spilled coffee again? 😂

@t288msd 8 ай бұрын

I didn't know any mainstream airlines still flew 767s. Good to see some of them still around.

@N1120A 8 ай бұрын

Seriously?

@t288msd 8 ай бұрын

Be careful not to assume mainstream airline all exist in the US. The world exists beyond US borders :) 90% of airlines in the world are non-american. find me a 4 star or above non-american airline flying 767s for pax traffic. very rare. @@N1120A

@t288msd 8 ай бұрын

Actually i just looked it up. Only 4 of the worlds 90 4-star and 5 -star airlines fly B767s. One of them is Ethiopian Airlines. Neither American, United of Delta are in the list as they are all classed as 3-Star airlines. Makes sense. @@N1120A

@arheillocuh6319 8 ай бұрын

You a cave man right? Delta and United still use them in International and domestic flights ahah

@t288msd 8 ай бұрын

my point exactly. only used in the US. outside the US carriers have retired all of their 767s@@arheillocuh6319

@aigtrader2984 8 ай бұрын

And this is why I always have a handheld radio in the cockpit ladies and gentlemen. My bigger concern is if this aircraft had bad intentions, there's literally nothing anyone could have done quick enough

@bulldogbrower6732 8 ай бұрын

With the value of the humans on board and the lesser value of the aircraft wouldn’t it be a good idea to have a $400.00 hand held airband transceiver in every cockpit for just such emergencies.

@GiancarloGiuliano-wo5iy 8 ай бұрын

This is an extremely rare event. Besides there are procedures in place if this happens. They worked it out and no humans were in danger at any point in time.

@allenbythesea 8 ай бұрын

@@GiancarloGiuliano-wo5iy Insurance and preparedness are exactly FOR extremely rare events. That doesn't remove the need for them.

@N1120A 8 ай бұрын

Handhelds work poorly, at best, in smaller airplanes. In a pressurized transport category aircraft, with tons of shielding, they'll be pretty useless.

@kd5you1 8 ай бұрын

@@N1120A Maybe. A ham radio operator was allowed to use his hand held radio on a commercial flight, and he was able to communicate with other hams through a repeater that was hundreds of miles away.

@kd5you1 8 ай бұрын

@@allenbythesea I thought about the same thing... having a hand held radio. Having a flat tire is a relatively common occurrence, so it makes sense to carry a spare, but having an aircraft lose all radios is one in a million, so it wouldn't justify having HTs in every aircraft, especially when they have other procedures that they use quite often already.

@biggreencam 8 ай бұрын

It's unfortunate all the cell phones had to be in airplane mode

@RealRickCox 8 ай бұрын

Yikes. Of all the places to lose a radio... this one is the WORST. If a plane doesn't communicate with tower - they start making assumptions about who's in control of the airplane. The last thing they want is another 9/11 situation.... so this is a really scary situation for the pilots and controllers.

@shakey2634 8 ай бұрын

Antique 767…..there’s your problem lady.

@rona4960 8 ай бұрын

A fan of South Main Auto Repair?

@shakey2634 8 ай бұрын

@@rona4960 Yes sir!

@jasonwillis4819 8 ай бұрын

Wow - dump non pilot Q. Why not throw on Air Mask that has a separate microphone and speaker? Why not Text the Squak 7700 or similar??

@frankish5314 8 ай бұрын

They may have tried the O2 mask mics but it was probably a complete radio failure. The sqwark code for lost comms is 7600.. Yes I have used it once single pilot in IMC and just saw the green light as I popped below the clouds on final.. Stressful start to my day..:)

@peileii 8 ай бұрын

2 pilots, 2 headsets...with hand-mike backup....if none of those worked, it was a full radio failure. Using O2 masks wouldn't have made sense in this scenario. In the video, you could hear the controller asking UA992 to "Ident" if they heard them - that's a feature of the transponder. If they didn't Ident, that means they couldn't hear them.

@awgunner429 8 ай бұрын

7700 is for general emergency, 7600 is for radio loss. Luckily ACARS worked, A third (final) backup would be to activate the locator beacon, but that could possibly cause a ground stop for all aircraft in region.

@jasonwillis4819 8 ай бұрын

@@frankish5314 thanks

@jasonwillis4819 8 ай бұрын

@@peileii thanks