Heading Towards A Disaster | Flying Blind | Mayday: Air Disaster

PART 1 | This is the story of what happens when the computers fail and the pilots are left Flying Blind in the dark. This reveals flaws in the computer systems that remained hidden throughout the aircraft's history and how a simple error can a lack of training can bring a giant and complex airliner to a fatal end.
Aeroperu Flight 603 bound from Lima, Peru to Santiago, Chile is a lightly loaded night flight. All appears to be normal as they leave the runway but as soon as they take off, the pilots notice a confusing set of alarms and instrument indications. The computer sounds an Overspeed warning followed by a stall warning stating that the plane is travelling too slow. The crew become confident of the tower's altitude readings and ignore the ground proximity warning when it appears again. Fooled by the false confirmation of their altitude and unable to see in the dark, the crew crash the plane into the ocean.
Don't forget to check back on our channel for part two on Wednesday! Do you think if the pilots listened to the computer readings for the second time, the outcome would have been different?
From Season 1 Episode 4 "Flying Blind": This is the story of what happens when the computers fail and the pilots are left Flying Blind in the dark. All appears normal on Aeroperu Flight 603 as they leave the runway to go to Santiago, Chile but as soon as they take off, the pilots notice a confusing set of alarms and instrument indications. The computer sounds like an Overspeed warning followed by a stall warning. After several mixed readings, the crew become confident and ignore any other warnings. Fooled by previous false information and unable to see in the dark, the crew crash the plane into the ocean.
Welcome to the OFFICIAL Mayday: Air Disaster KZbin Channel.
Mayday: Air Disaster is a dramatic non-fiction series that investigates high-profile air disasters to uncover how and why they happened. Mayday: Air Disaster follows survivors, family members of crash victims and transportation safety investigators as they piece together the evidence of the causes of major accidents. So climb into the cockpit for an experience you won’t soon forget.
Subscribe to the OFFICIAL Mayday: Air Disaster channel here: bit.ly/2PQnaMI
#MaydayAirDisaster #MaydayInvestigation #AirEmergency #MaydayEpisodes #planecrashes #airplanecrashes #airplanedisasterdocumentary #aircrashinvestigation #Aeroperu #AreoperuFlight603 #Boeing757 #FlyingBlind

[@MaydayAirDisaster]

Want to watch part 2? Watch it here: kzbin.info/www/bejne/a5vRkoKnp6x6gs0

[@MrBugman2525]

Why can't any plane in trouble, why can't they send up f 16 fighters jets to help the planes in a emergency, help them land

[@Lone2011Wolf]

@@MrBugman2525 this is a foreign country. Isn’t the United States

[@beab5942]

Translation from the original audio was 100% spot on, word for word. RIP to the passengers and those brave pilots 😢🙏🕊

[@tedd1091]

I'm a retired Airline Pilot and I can tell you their situation required them ignore the bells and whistles and fly pitch and power and ignore the instruments. This is incredibly hard to do since all instrument rated pilots are trained to ignore your senses and rely totally on the instruments. There is an abnormal checklist on the 757 for unreliable air speed indicator and basically it tells you to fly with known pitch and power settings i.e. for level flight cruise fly with the nose 3 degrees up and a cruise power setting like 65% power etc. Also, if memory serves there is an Alternate Static source switch that takes the static air source from a sensor on the fuselage to a sensor in the cockpit - it still will give you an inaccurate airspeed (maybe 5 or 6kts slower ) then what you are reading. There is also a Radar Altimeter that registers altitude 2500' about the ground or less. Why they didn't at least bring it into their scan. I am not bad-mouthing that crew, they were in a nearly impossible situation

[@Kait-tee]

With all those alarms & the atc getting the wrong info...flying in the dark (literally/figuratively) If this was on a stimulator, think the majority would crash 😧

[@natehill8069]

Never flown a jet, but If the GPWS started alerting at night in conflict with other instruments and I was trying to figure out which one to trust, I think I would turn on the landing lights and see if there was something out there. Granted glass-smooth water wouldnt show, but any waves would.

[@natehill8069]

If there isnt an alternate static source, breaking the glass on the rate-of-climb will give you an alternate static source, if you have steam gauges and arent pressurized. If you have a computerized cockpit , you could break the display just to feel better.

[@tedd1091]

@@natehill8069 With my former airline, if we ever get a GPWS we were trained to do the standard escape Maneuver - Full Trust, firewall throttles, initial pitch 15 Degrees and if the GPWS is still alerting pitch to the stick shaker but respect the stick shaker don't pitch into the stick shaker but "Tickle it" and keep that pitch until the GPWS is no longer alerting

[@joriskemper5392]

With all that is at stake, the warning whistles, the contradictary readings, no visual reference at night, it's a miracle one of the pilots didn't have an anxiety induced heart attack.

[@younevertoldme]

it’s been 26 years since peruvian and chilean families have endlessly mourned the loss of their family members, and airport negligence is still an ongoing problem that still causes accidents today. i wish anyone who has lost a family member to this or to any tragedy the best, and i’m sorry for their loss.

[@leszeklechocinski392]

Większość ludzi chce latać za grosze nie doceniając pracy pilotów a to są ludzie którzy często giną ratując nam życie Panowie Piloci dziękuje za wasza prace i poświęcenie

[@traveltoexplore8415]

In this situation there is no way out, even with very experienced pilots. What a tragedy.

[@luuduonghy659]

But can we appreciate first officer for known the situation dangerous; he try to saved all passenger in this flight. Its a shame that the captain mess it up

[@timmy8299]

They should have come back to Lima airport as soon as they saw all 3 altimeter were out.n Landing back with atc radar data for help

[@ASDFGIWRK]

​@@timmy8299they tried but the altimeters and the caution to not stall the plane after turning caused them to turn to lima airport slower

[@mistergq1774]

Wow !! These pilots were something else … fought hard till the end …. Real heros

[@tommychew6544]

This is the most terrifying one I've seen yet! If you can't trust your instruments in the pitch black, what do you have? Can't wait for the second half!

[@arts-ns2yr]

I am a professor and was once in a discussion in which my students contended that computers and automation would overcome the natural failures of human intellect, leading us into a more perfect future. I sent them this video. Garbage in, garbage out.

[@I_SuperHiro_I]

I would say human intellect is essential no matter how technologically advanced we become. Blind trust in machines is one of our failings though. Had these pilots used common sense and set low angle of attack, flying with pitch and power only, they could have maintained level flight with ease for hours. Of course it’s easy to say that laying in my bed after the fact.

[@kirilmihaylov1934]

@@I_SuperHiro_I this wasn't machines failure but human error

[@pntbtr]

Yep!😖

[@amymason6234]

Humans make machines. Technology is an awesome thing, but like anything else it can also have flaws.

[@paulsuprono7225]

Better to learn in the classroom under the concept - Case Study, than have to learn through their own actions. The immemorial phrase comes to mind - "If we don't learn the lessons of history, we're bound to repeat them." 💀🇺🇸😬

[@bmansstopmotions]

we can all appreciate the dedication that goes into makeing these videos❤

[@devingraves8044]

Bruh it's literally a TV show, of course it's going to have good quality by KZbin standards

[@Kelly-qk3ro]

Yeah it’s a show you can find on paramount + on smithsonian channel

[@brianclingenpeel5123]

I guess .....but this was produced for a major network and their main concern was money. I can guarantee that.

[@brianclingenpeel5123]

Lots of people are willing to "dedicate" themselves to something when there is a big potential paycheck involved. Just saying

[@KNR90]

I hope you don't think they actually made this video for KZbin.

[@maagu4779]

A new rule to follow: First sign of trouble, turn around...head back. Figure it out WHILE on the way back. Seconds matter.

[@flashstar1234]

I completely agree. Airlines these days care too much about profit to the point where they are willing to take the 1% chance of disaster and train their pilots to not turn back in the event of small signs of trouble. If anything is wrong, just go to the nearest airport. Anything is possible and the small problem could just be a big problem that has never been seen before. If the problem is solved on the journey to the nearest airport, then continue the journey. Airlines just don't want to risk losing money for very small issues and it costs lives here and there.

[@RacinZilla003]

Okay, they turn back, then what? altimeter is not working and when it does there's less than 1600'. Lima has mountains that climb steeply well above 14,000'(edited)

[@flashstar1234]

​@@RacinZilla003 "Then what?" What a question. Then they would land the plane with the bright city and runway lights giving them visual reference of their surroundings. As the comment said, "first sign of trouble" which happened when the plane was still in Lima. Instead of landing immediately, they decided to head out towards the ocean (05:50 is where the documentary mentions this) away from the city lights of Lima where they would've had a visual reference of the city, the airport and the runway. Had they just told the tower they had an issue with their instruments when they were still above the city, landed the plane, everyone will still be alive.

[@RacinZilla003]

@@flashstar1234 Not how it works Pitch black, their altimeter read 1600', mountains around Lima climb steeply up to 14,000(edited). The lights are a very poor visual reference and at the speeds they were going, would be near impossible to avoid obstacles. Going out into the ocean was their best chance

[@flashstar1234]

@@RacinZilla003 They are above the city at that point. They won’t hit into the mountains if they simply stay away from them. Yes, they don’t know their altitude but they do know their position. Simply stay away from the mountains. Also, the city is not a poor visual reference. The city shows you definitively where land is. The problem when they were above the ocean was that they couldn’t see the ocean surface but in the city, you would know if you are about to crash into the ground as there are street lights. Also, what obstacles are there IN Lima? A building? I’m pretty sure there aren’t any massive mountains or “obstacles” in Lima. All they had to do was turn to the airport, stay away from mountains, make sure they are above ground and attempt an emergency landing. Plus the landing strips have runway lights so they can surely see the runway. The only issue to overcome is speed. They just have to hope they come in at the right speed.

[@existenceispainforameeseeks]

i still can’t get over how similar the actors look to the real people they’re portraying. also, i can’t imagine loosing someone like this 😔 how devastating..

[@lizpurr8402]

These episodes give me horrendous anxiety with sweating, high BP and hr lol but I keep coming back for more RIP Everyone✈️🙏❤️

[@patriciaAmurray]

It was cool seeing Pat Mastroianni from Degrassi playing the role of traffic controller.

[@emanuelcollado1343]

Your cliffhangers are killing me softly

[@antoniobranch]

Their killing me hard.

[@sigsin1]

It’s causing me pain.

[@emanuelcollado1343]

I found the entire episode on youtube

[@kasatka3690]

@@emanuelcollado1343 do you have a link?

[@emanuelcollado1343]

@@kasatka3690 youtube it no sorry I even found the recordings before the end on another video of course

[@Nacho-Mamma]

You know, you can have the greatest pilots in the world flying the greatest plane in the world. But, if you fail at keeping it maintained and running properly, the next crash IS ON YOUR HEAD! The pilots could only work with what they had! Everyone wanted to blame them, but you need to look at the root of the problem!

[@MIXTAB1]

Alaska 261 comes to mind, maintenance is as vital as the skills of pilots

[@Nacho-Mamma]

@@MIXTAB1 Exactly!

[@brigidtheirish]

@@MIXTAB1 The one where the pilots managed to keep the plane flying for a while even though it was upside down. Yeah. There really should be some sort of award for that kind of feat, even posthumously.

[@kevinmalone3210]

The co pilot was right about them entering a stall. The throttles were at idle, their speed brakes were on and the stick shaker was activated. They knew the instrumentation was given them false readings, but since the throttles were at this low setting, with the speed brakes on and the stick shaker on, then this was info they could trust, and test by pushing the throttles forward, and take off the speed brakes and see what happens. Also they had to ignore all the false readings, since they knew it was false, no speed indicators, no altitude, ignore the mach trim and the over speed and by fly the plane, and fly by the seat of their pants, by keeping the throttles forward and rely on your artificial horizon, and keep the yoke from moving forward, maybe back a little to keep from descending, get a vector to head back to the airport.

[@natureandrandomstuff]

😶

[@gavinevelyn9747]

The artificial horizon was impossible in the dark and those false alarms and alerts are so agitating

[@beans_potatoes]

Thank you for fixing the audio on your uploads!

[@boblawblaw6875]

I have no idea why, but I am addicted to these videos. Good morning thing I don’t fly all that often

[@davidleebls1874]

All that noise... you can't Think!!!

[@davidleebls1874]

Thumbs down ....... rest of the story?

[@guillermoalonzodon1665]

They should have turned around when the first wrong instrument readings started.

[@tomdipasquale9633]

Yes!! But almost always never do until too late! So frustrating that a pilot would jeopardize & take a chance!!

[@RacinZilla003]

You guys weren't paying attention They declared an emergency less than two minutes into the flight

[@nonsensicalfox]

@@RacinZilla003 I think they were saying they could've aborted the take-off. After they committed they were pretty much doomed

[@RacinZilla003]

@@nonsensicalfox None of the problems started until after departure

[@Williamjclopez82]

@@tomdipasquale9633 like a U turn when your driving a car right?

[@samueldarkwah2301]

Best documentary ever watching live from Dubai

[@nature7413]

I'm are Ghanaian i could tell

[@berserkerkonge8095]

How can it be the best when it's only half?

[@kjhman]

Enjoy the flight back. 😬 🤞🏼

[@berserkerkonge8095]

@@kjhman oh I see....yes. wait your watching this while you fly? This is why I don't fly anymore. 😁

[@kjhman]

@@berserkerkonge8095 they cut out the boring part

[@kjhman]

Best documentary to watch while on a flight.

[@IARRCSim]

especially when your flight has lots of turbulence and you hear the computer warning pilots in the cockpit.

[@MsBluestsky]

😂😂

[@MsBluestsky]

I would be terrified

[@xanatax1844]

omg, how badly I want them to pull the circuit breakers to shut-up the false warning buzzers.

[@petemchardy3605]

yeah probably a good idea man I a pilot and the first possible Tribble I would turn back the airline I work for didn't like it because out 200 flights I tend back 53 times they fired me because I was costing them to much $ but safety first man

[@hwvanzant3007]

@@petemchardy3605 if you were a pilot, you would know that you can not turn off these warnings, liar....

[@6th_Army]

@@hwvanzant3007 Some aircraft have that option. Others don't.

[@chrishaan5766]

Should have turned around and returned to the airport while the lights of the city were still in sight giving them reference not only to altitude but speed as well

[@RacinZilla003]

That's an armchair analysis if I've ever heard one Jorge Chavez airport sits right next to the beach, mountainous terrain all the way around and an altimeter reading barely above 1600' if it even works Safest to stay over the water unfortunately edit: to clarify Safest to stay over the water so as to ensure as minimal collateral damage as possible

[@chrishaan5766]

@@RacinZilla003 If that’s an armchair analysis then you are the offensive coordinator Nighttime flight with no moon Instrumentation had already begun to fail before they had reached the coast Most prudent course of action was to call out emergency and return to the airport Using what pilots have used since the dawn of flight to help them get safely back on the ground

[@RacinZilla003]

@@chrishaan5766 Sorry what? Before they reached the coast? Have you seen Jorge Chavez's A/FD? They are off the coast once they take off. Have you been to Lima? I have, and those mountains climb steeply and at night are impossible to see. Going out into the ocean to avoid terrain was their safest option Also, they called an emergency less than two minutes in

[@chrishaan5766]

@@RacinZilla003 According to the video They began having issues while “Lights” were still visible out of the cockpit windows If this was a production error while making the video then I apologize I have never flown into Lima My comment was based on the information provided by the video

[@RacinZilla003]

@@chrishaan5766 Okay, that's fair The documentary kind of dropped the ball on this episode regarding the risk assessment. Had this been Houston or JFK where the topography is flat, then yes, turning back to airport would have been the best choice. The topography of Lima makes it special in this regard where there was really only one safe place to go. Otherwise, there's terrain, and needless risking of lives in the city below. Keep in mind, up to that point, they had no idea what the problem was and loss of control was a very real consideration. For everyone, the Ocean was the safest option

[@Lvlaple4Ever]

Always safer to go as high as you can so you have more time to deal with problems before potentially crashing.

[@Bullet-Tooth-Tony-]

@Crus Harold I don't think they were flying slow though the warning mustve been wrong

[@brigidtheirish]

They couldn't go too high, though, or they wouldn't be able to land. They were also getting false information regarding their altitude. So, they thought they were at a safe height, but were really drifting down.

[@brendawiener]

The lights of land were still visible when problems started. Why they didn't keep the lights within sight and immediately call ATC is mind boggling.

[@jeanicemalu9104]

That is also what I was trying to understand. If you have nothing to guide you why not turn back. I have been having sleepless night trying to respond to that question

[@brigidtheirish]

@@jeanicemalu9104 Possibly because they couldn't tell exactly where "back" was, didn't want to risk crashing into a populated area, didn't know what they could even say to ATC that would make sense, or some combination of the above.

[@MagnumMike44]

This video didn't mention that the accident was caused by a maintenance worker leaving duct tape on the 757's static ports that are on the underside of the fuselage, probably because the portion that reveals the cause of the accident was cut out. The static ports are used to feed critical flight data into the aircraft's computer system but the blockage is what caused the erratic readings the flight crew saw on the instrument panel and the same incorrect information was also seen by the Peruvian air traffic controllers. There was no fault with the aircraft and its computer systems.

[@MagnumMike44]

Oops.. sorry, there is a Part II video that documented this crash, which also explained what caused what caused it.

[@deedee4037]

I m addicted to plane investigations

[@MoogieB]

Pitot tubes again? Can’t wait to see part 2. I think this might be the one where tape over the pitot tubes was not removed before takeoff.

[@tedekberg57]

tape over the static ports

[@52ponybike]

So much for the pilots visual inspection of the outer aircraft before preparing to take off. NEVER trust the nonchalant ground crew!

[@nerysghemor5781]

That's what I started wondering too.

[@wholeagain]

Right I just watched the last one “ the plane that wouldn’t talk”

[@andreyv116]

Pitot tubes got covered in duct tape instead of remove before flight red caps so they were invisible in pre flight inspection

[@tmp5]

I like how both the pilots had mustaches

[@ABCDEF-mq2tl]

What i've learned in these videos. The terrain alarm warning is never wrong...

[@sureyabell2082]

haha :) Im doing a marathon on watching mayday airplane crashes and that alarm is now anxiety provoking to me at a legendary level.

[@chrishaan5766]

Computers are amazing Until they are not ! A pilots job is to fly the plane All this technology takes that job and entrusts it to a machine that can be tampered with or manipulated There should always be a way to override the technology in an event like this A pilot should never completely trust technology or the people who program or service it Carrying a mechanical compass and altimeter in their bag would have served these pilots well In recent years the 737 with its new engine configuration comes to mind Let pilots be pilots with help from computers not at the mercy of them

[@budwhite9591]

Idk if a wrist altimeter would work jn a pressurized cabin. But I do like how you’re thinking

[@danielkokal8819]

once you get a plane that big youre not really flying it anymore, youre steering a building in the air while the computer flies it.. also.... AI will fly the planes soon and eliminate all human error. are passenger drones really that far away ? it crawls my skin.

[@jamesstreet856]

Exactly right. There was a test flight testing the anti stall feature. There were 6 people on board I think evaluating the planes performance. They were so confident that the computer would pull them out of a stall that they put in the stall at only 4000 feet which is recommended to be done at a much higher altitude so you'll have more time to pull it out of the stall. Once they deliberately put it in the stall to see if the computer would pull it out, it didn't and they crashed killing everyone on board. You can enter "They trusted the plane too much." What I wrote may not be exactly right cuz it's been a long time since I've seen it but it's pretty close.

[@freddiecunningham2860]

@@jamesstreet856 but 4000 ft is pretty high they had time right?

[@supergamer1388]

@@freddiecunningham2860 Unfortunately, no. The average falling speed of a plane is about 108 mph. It can be faster or slower than this, but this is the listed average. At that speed, hitting the ground from 4000 feet would only have taken 25 seconds. Since it would need to accelerate to that, I'm going to say they had about 30-45 seconds of free fall before striking the ground. I can't find any info about how long it takes to come out of a stall, but I'm going to assume it's a minute or more.

[@natureandrandomstuff]

I wonder if this kinda videos will increase my fear for flying. I still love watching them.

[@GSS1Sirius]

I would be driven insane by all those alarms and blinking lights.

[@hmasna]

A duct tape was the culprit. A mechanic had worked on that plane, put a duct tape on both wings where the pito static tubes were located. It was just a routine, but he forgot to remove the tape. When the pilots conducted a walk around, looking for just that kind of thing, they never spotted it, due to its extreme height. That was where the problem started, that ended in a disaster.

[@jameswest8280]

"Always trust your instruments", is beat into every pilot from day one. When your instruments betray you, and you have no visual, there's not much you can do.

[@natehill8069]

Also beat into you in training is check your instruments against each other so you can tell if one is lying to you.

[@jameswest8280]

@@natehill8069 fair enough.

[@mikebronicki6978]

Mistake came in their first minute of flight, should have landed immediately before leaving greater Lima.

[@RacinZilla003]

Lima has steeply climbing mountains surrounding it. The altimeter read 1600'. Though, they knew it was faulty, should it correct, they most certainly would have hit terrain

[@Angry-est]

Season one of air crash investigation is really interesting to me. Imo the acting is spot on in almost every episode. In fact its scarily good sometimes, like this one for instance, you can see the stress build on the face of the pilots over the course of thirty minutes. However i often find the explanation sections of these first few seasons to be lacking, more matter of fact and less compelling than later seasons. The later seasons themselves kind of do a complete 180, the investigation part of the show is wildly entertaining and so are the reenactments, but the acting, and maybe this is just me, definitely feels less sincere, particularly in the investigation sections.

[@Krystalmyth]

You can tell they have a different directing staff.

[@mocat1]

Completely off topic: I knew it! That is “Joey Jeremiah”!

[@xonx209]

If I hit water while ATC tells me I'm at 9700, very impolite words would come out of my mouth uncontrollably.

[@kevinmalone3210]

It still wouldn't have been ATCs fault, because they were getting the same false readings from the planes transponder.

[@workinprogress3942]

Cool to see uploads. Not cool to see only half the video

[@pntbtr]

Heart-wrenching! Those poor pilots!

[@fonhollohan2908]

Its situations like this all that comes to mind is that the industry is relying way too much on automation instead of the basics of flying aircrafts. With all technology available to us, we should have available to all pilots and operators of modern equipment for that matter the ability to shut off all technology and be able fly or operate whatever equipment is available to us. That's the only sure safe redundancy that should be set in all machinery.

[@GianlucaBerger]

At least the passengers on these flights weren't aware of the issue until the very end, unlike Flight 301 which just fell from the sky. I'm just shocked nobody survived, cause the crash was at such a low altitude Edit: Never mind I just read on Wikipedia that the edge of the left wing came off an the plane inverted.

[@irisortiz4420]

Thank you,I can’t wait for the second part

[@edgarotieno2872]

The pilots trusted the instruments so much that the forgot that the engine was in idle and also the speed brake was activated... Stall was there answer for the mistakes they did.. RIP to all the crew and passengers.

[@ilicythings]

they were trusting the ATC's altitude readings, and unfortunately no one involved knew that the source for that reading was the plane's computer. That and being bombarded with as many warnings, false and true but with no real way to differentiate makes it really understandable that they got so confused. They did mention that they shouldn't be able to maintain altitude with the engines on idle, but they trusted the altitude as read from the tower. Even watching the reenactment you can see how chaotic the situation was, and we get the advantage of watching where we like and not having any consequences for our wrong thoughts. The fact the pilots managed to keep the plane in the air for as long as they did is incredible, and is a testament to their skill, even if they were not successful in their attempt to land safely.

[@Interdictiondeltawing]

Birgenair 301's counterpart

[@ellenm1228]

I was just thinking that

[@emeraldqueen1994]

Would you please link a video on 301? I’ve never seen that one before...

[@Interdictiondeltawing]

Emerald Queen I think you should go on channel page and see the title: the plane that wouldn't talk

[@ellenm1228]

@@emeraldqueen1994 The one this channel uploaded yesterday is Birgenair 301

[@russelledwards7084]

My heart just died watching this:(

[@ryanlee1747]

Welcome to Aeroperu we hv the first wide body boeing 757

[@hinglajsankroth]

Never avoid stick shaker and GPWS

[@MaydayAirDisaster]

Do you think if the pilots listened to the computer readings for the second time, the outcome would have been different?

[@rosemaryangela1825]

If they had just gone up 1000 feet - just to make sure that the terrain warning was bogus…

[@MagnumMike44]

If the flight crew were getting true information from the computer in the first place this accident would not have occurred. See my message about the static tubes that had duct tape placed over them by a maintenance worker.

[@sage18000]

I just don't know. I think that pilots should know better than to trust that you're accelerating with engines on idle. I think that a combination of Overspeed and Stall warnings with an unknown or low altitude the stall warning should take precedent. Yeah, you might start to break apart the aircraft, but you can likely slow down before you completely destroy it and likely cause less damage to the aircraft than stalling and hitting the water. Ground Proximity Warning System works off of a different system than the instrumentation that the pilots had lost, so that should have been listened to and maybe they could have figured out that they were in fact about to stall and hit the Earth. ATC radar should be equipped with altitude information on primary returns the same as military radar is, but for some reason it isn't.

[@dimitrageorgiadi5087]

They were so confused with the wrong alarms and readings, actually they did not know what to believe. They did not even have a chance, as things transpired. OMG, may they rest in peace.

[@serasienna1212]

@@rosemaryangela1825 has been an interesting oooh night and r f Benguela

[@natureandrandomstuff]

Finally there's audio and so I don't have to be reading what's going on.

[@michaelsowden5892]

The 1980’s was such a horrible decade for aviation worldwide. Even into the 90’s (1996 here) the perpetual disasters just seemed to never end. So many disasters and lives lost.

[@johorajannat6262]

You are the most underrated youtuber in my Opinion

[@joycijoyce]

Hi. I’ve watched all your videos from other channel (Wonder youtube channel). Do you have other or newer episodes? Can’t wait for next upload.

[@natehill8069]

There should be a placard on the radar display "Warning: altitudes displayed are reported by the aircraft. Not to be trusted if the aircraft does not have valid readings."

[@elite_facts_10140]

I am proud to be the 1000th person to like this video.

[@slashmaster84]

I've just realized that the Peruvian map is wrong: at 25:14 they're showing Arica inside Peru, which was true... over one hundred years ago. Nowadays, Arica belongs to Chile, and not to Peru anymore. Also, instead of Arica, that city is actually Tacna.

[@jamesb1988]

23:40 that's the uncle of the First Officer, that's why he seems a little less professional than usual.

[@scofab]

WHY didn't these guys do a 180 and get a horizon... with visual reference they would have had a chance. RIP.

[@mortenguld3076]

This presentation is severely misleading in the visual aspect. It is overcast skies from 900 feet (270m) this night with 6 kilometers visibility. This B757 is going to Santiago which is a 3 hour flight carrying 60 passengers. This aircraft can carry 180 with a range of 8 hours so the load is very light and the B757 is well known for it performance, so given a conservative initial climb of 4000 feet / minute this aircraft would be in the clouds already 15 seconds after takeoff. Even if the crew wanted to level off at 900 feet this would have to be initiated early so as not to overshoot. Say 500 feet, so it would have to be initiated 8 seconds after takeoff. There is no way anyone could identify and react to a problem like this without prior knowledge and training. Once in the clouds a visual return is not possible before trouble shooting and finding the root cause. In the accident report the tower controller reported seeing the aircraft entering the clouds before reaching the departure end on the runway so all you see of coastline ect. is fictious, and only adds to confusion and discredit of the crew. There was also no mention in the accident report regarding the crews choice to continue over the ocean vs a visual return.

[@dafneydouglas8356]

Rip to the passengers and crew who didn't make it in Santiago, Chile 😔 🌼🌸🌻🌹💮🏵🌼🌸.

[@vihaanarora8647]

I LOVE your videos, just 1 small suggestion, at the end of the video, add how pilots can avoid the error or at least help with it. This way if a real pilot watches your videos, they have more knowledge on how to prevent a crash in a certain condition.

[@paulazemeckis7835]

Whats the point in uploading a portion of an episode with the investigation cut off? These are old episodes available on other Utube channels in their entirety.

[@hattrickk15]

Oh my God it took me the whole video to realize where I recognized the actor playing the air traffic controller. I'm pretty sure it's Joey from the original Degrassi!

[@umbertoflocco7866]

No part 2? Wtf

[@canuck_gamer3359]

I think cockpit warning systems should be reengineered slightly. As you can see from this video, it's virtually impossible to focus, communicate and stay calm given the nature of the alarms and warnings. I think they should have longer pauses between warnings, so instead of something like an alarm clock buzzing or beeping, why not beep for 10 seconds and then 5 or 10 seconds of quiet (while the light or text remains) to give the pilot a chance to think. I'm not suggesting I have all the answers, I just think there is a better way to both raise the pilots attention but also in a calmer way.

[@gianni4925]

First Bergenair Flight 301 yesterday, now Aeroperu Flight 603. They sure like to focus on those poor 757s.

[@maagu4779]

Can traffic control determine height and speed WITHOUT the planes computer on?

[@RacinZilla003]

Good question! Primary radar is immensely inaccurate and has been the cause of several of mid-air collisions. Secondary Radar, the ones used by the transponder communicating with the tower, is significantly safer, however, in this case, the redundancy failed as the readings from the static port were inherently faulty.

[@Alb410]

Sometimes. In Canada, during the 767 Gimli Glider incident, ATC controllers quickly rigged an older radar system known as primary radar to give basic information to the pilots who lost their engines and transponder. But not all controllers know how to do this and not all towers have the older tech.

[@cremebrulee4759]

@@Alb410 The Gimli Glider! That was an amazing job of flying.

[@littleowais2701]

Hey I saw your Aeroflot nord flight 821 in TV please heart me even I love this episode

[@Thatguyjack758]

Yooooo that’s Joey Jeremiah as the air traffic controller.

[@fawziekefli2273]

I've never seen an episode of Mayday/Air crash Investigation where the ground proximity warning was wrong.

[@Balien2]

At least put part one in the title so we know it’s half an episode

[@yolli6112]

A worker at the airport put duck tape on a important part of the plane causing the plane to give false information to the tower control.

[@scarletmacaw]

When will people finally realize that jet aircraft are NOT submarines???

[@Teochewtuahang]

Some Russian airline have amphibious jet aircraft

[@sg7772]

I dont get why they didn't IMMEDIATELY CONTACT the maintenance department to see if they could help..also why didnt they IMMEDIATELY radio ATC that they were turning back and they needed help?

[@Alb410]

Hindsight. Some people act immediately under stress, others panic, but train themselves to act within seconds, others focus on specific things during stress. We say these things on the ground in 2021, but we weren't there in the air back in the day. Lets see you make the optimal or even the obvious decision when alarm bells are ringing in your head and confusing errors are sent in your face.

[@sg7772]

@@Alb410 true

[@kalet196]

I would've start climbing as soon as I heard the terrain warning, better to go up than risk ignoring the warning if it was correct

[@LotusLady9]

Thank you💟

[@ronmartin3755]

I have a question! Would some of you other pilots out there explain to me why airliners do not have basic instruments as a 4th backup system to the computer-controlled three systems in the plane? I think if they had a plain old altimeter and pitot tube airspeed instruments this plane could have been saved! Flying something this large takes away the "seat of the Pants" flying of small planes and instruments that cannot fail should be mandatory! Although old instruments can fail or pitot tubes can be blocked by insects like DIrt Dobbers and such but basically those two old instruments not hooked to a computer system would have saved this plane and the people on it! Now wouldn't landing lights have seen how close to the ocean they were?

[@Alb410]

I think your confusing this crash. The computers did not fail, this airplane was flying with pitot tube airspeed instruments as well as computer instruments. The problem was ALL the pitot tubes themselves were blocked by tape which were placed on them for maintenance purposes and did not get removed. Therefore another altimeter would not have saved the plane as it would also have been blocked during maintenance. "As a result of the blocked static ports, the basic flight instruments relayed false airspeed, altitude and vertical speed data. Because the failure was not in any of the instruments, but rather in a common supporting system, thereby defeating redundancy." What the real question was, why did the flight controller not immediately switch to primary radar? Primary Radar is highly inaccurate, but it doesn't use transponders, and makes its own calculations on the planes speed and altitude. And if he did not have primary radar, why did he not have access to primary radar?

[@zidanehadeed9229]

@@Alb410 It was the static ports that were blocked, covered with tape to be precise. A worker used the wrong tape while cleaning and forgot to remove it, it was impossible to distinguish during preflight walk around. The only correct instrument was the radar altimeter, it's tied to the GPWS and activates from 2500ft.

[@RacinZilla003]

You are absolutely spot on As a fourth back up it wouldn't have been necessary. A simple alternate static source would have likely saved their lives. Today, it is a requirement to have an alternate source for IFR aircraft. In non-pressurized aircraft, it is located within the cabin. In pressurized crafts, usually alongside the battery or ELT. And in larger aircraft, then within the cargo hold. Alternate static ports tend to be less accurate than their standard counterparts but would most certainly have saved 603. I have no idea if it did have one and was overlooked but you are correct in your assessment that it would have solved many if not all of their problems

[@carlos2003177]

I love the ads every Two minutes ❤️

[@pp3k3jamail]

Download vaned kit KZbin app It blocks ads

[@humanbeing2420]

Could they have scrambled a fighter jet to help guide the 757? Why did they wait a half hour for a 707 to take off?

[@rayross997]

If only another plane could have been sent to fly beside them and guide the pilots to land.

[@xonx209]

They should have requested this at the very start.

[@RacinZilla003]

@@xonx209 I refer you to 12:04 of the video

[@mpscorporation6874]

This would have been the best course of action given the circumstances, in my opinion.

[@sushmaratnakar6560]

I appreciate your hardwork man . Keep going 🤗

[@PrepareForTakeoff123]

Very very Interesting human error 😧🤨🧐

[@andrewalligood3121]

There are times when jets fly into volcanic ash clouds and the engines flameout.Why isnt there a sensor that can detect traces of ash and reroute before it turns into trouble?

[@michaelgarrow3239]

Wet compass on the dash. Radar altimeter.

[@scottstewart9154]

The tower should be able to give them altitude based on their ground radar not just airplanes transponder, wonder why they didn't do that. I guess they never had a problem with wrong transponder information in past?

[@titoskeleton9571]

I could be wrong but back then they relied heavily on the computer and from my point of view without having a redundancy on the readings as it probably never happened before... they probably updated radars to be able to use some different data to get the accurate reading to ignore a possible bad computer... But this is my opinion

[@mortenguld3076]

Still works that way today. Radar only measures distance to an object. ( a bit like the beam from a light house). It can not tell how high an aircraft is. (which is why the data is sent from the aircraft to ATC. ( Height can be done by using a second radar turned 90 degrees/ sweeping up and down, but only for a limited segment. Called PAR and used at some military airports to guide aircraft locally in poor visibility approaches)

[@ecehanbalkc6146]

Once they knew they were over the ocean why did they not just pull up and increase speed just to see if the terrain warning would disappear. That would've told them the air traffic controllers altitude is false

[@lanacampbell-moore4549]

Thanks for sharing😊

[@AJ-77]

The control tower was so slow with the guidance plane, they should be use a combat fast airplane for guide them.

[@johnwatson3948]

There must be an answer but have always been confused why the pilots seemed to think ATC’s speed and altitude calls came from something other than the planes own transponder. It’s common knowledge even outside the business that ATC “radar” info is based on transmitted signals from the aircraft.

[@TERoss-jk9ny]

Where’s part two?

[@liambengif7663]

this was just like the Bergen air incident but instead it was human error when the maintenance people put a piece of tape over the pito tube

[@LordOfTheBored]

*static ports, pitot tubes only measure speed, with taped pitot tubes they would at least have had an indication of the correct flight level

[@liambengif7663]

@@LordOfTheBored i knew that, i just typed it wrong

[@confirmhandle]

At least the film crew survived

[@simonf8902]

Did they pull the plug out and put it back in ?

[@williamsquires3070]

Doesn’t this bird have a radar altimeter?

[@MK-ge2mh]

Those only work when within a few hundred feet from the ground. They're only used for IFR landing.

[@pjimmbojimmbo1990]

@2:47 Hmm, the plane was stated to be a 757, which is a Single Isle, but the Reenactment has 2 Isles

[@erikandreassen6531]

I'm watching this and what happened?????

[@koramust73]

What did the maintenance on the ground do ???

[@saltyfox7056]

In light of this video I think it might be smart for pilots to have night vision equipment as an absolute backup.

[@Teochewtuahang]

Nah, the best is fly daytime only with good visibility

[@RacinZilla003]

We kind of have that today Our primary flight displays contain within it a rendering of the topography of the surrounding area. But you're correct, this likely would have saved their lives as they could more readily have information of where they were to the mountains and ocean

[@RacinZilla003]

@@Teochewtuahang That's the equivalent of saying only drive on racetracks

[@SilverLady52]

I've thought this for a while! There is something you can add to your car window to be able to see better at night, why not an airplane? Or a virtual representation of the terrain outside when it's too dark to see?

[@ABCDEF-mq2tl]

​@@Teochewtuahangwhat about transoceanic flights?