If indeed it is an MCAS induced crash then the primary responsibility is Ethiopian’s training. I think we can presume that 737 drives have heard about the JT accident and MCAS. But even with the JT case, there was discussion about how easy or not the fight agains the airplane is. People make it sou...Jump to post
I downloaded the data from the blog and I would say it is an MCAS case. See how the normal positive climb rate drops from time to time: https://flightzoomer.com/images/ET302-vspd.png If these vspd drops would be induced by MCAS, we would be able find the find 10s periods, after which MCAS would kic...Jump to post
The retraction of the flaps is mainly related to the airspeed. The last data recorded by FR24 shows a ground speed in excess of 380 kts (and it was still a head wind component, since it was still flying in the same heading as it had taken off). Even considering the 8500 ft altitude, the flaps must ...Jump to post
First, I would like to thank OEMInsider for the best and perhaps sole analysis contribution to this thread. Well done, thank you!!!!! Secondly, while you all may of course have any opinion about what to do based on accidents -- be it grounding, not grounding, or thinking about it, please, please REA...Jump to post
People saying that this wasn't a MCAS failure because at this point in time the flaps would have been on, and MCAS doesn't operate then. However, I'd like to point out that in JT accident the crew was fighting stick shakers etc from the moment they left the runway. It is true that MCAS enters the pi...Jump to post
Maintenance isn’t the issue with JT. Stuff breaks. That’s fine. MELing broken stuff is fine if done sensibly. What’s not fine is the same problem recurring without additional investigation. Again, I may agree you with the need for additional investigations. But your original point was that "re...Jump to post
FWIW, I'm bothered by the ground-the-max-without-knowing-what-happened crowd. But I have to say I'm also bothered by the rather defensive and repeated posts from the other side. It *is* clear that losing two brand new aircraft within months is a remarkable deviation from the safety record we've been...Jump to post
The crash site is around 60km (37 miles) south-east of the Ethiopian capital. How do you know it didnt climb much? I don't, actually. We do know, however, that for the part of the flight that was in the FR24 data logs, it did not gain much altitude. Assuming of course you trust the logs. But it als...Jump to post
This is obviously a very sad accident, a lot of people lost their lives. This thread has provided a lot of useful information, including partial data points from FR24 and an explanation of their confusing altitude algorithms. Still, we have very little other information to go on. I suspect we'll soo...Jump to post
Short of airlines requiring passengers to bring their own car seats, how would this be possible? Carrying around a bunch of safety seats on the chance they are needed isn’t really viable, as they will take up space, and how does the airline make sure they have enough? Are passengers required to sta...Jump to post
You have a long career as an aviator. I have a long career as a passenger. For sure you've been in the cabin more than I. However, neither one of us has knowledge of this actual incident, and neither one of us has personally performed a statistically valid assessment of the reasons why people might ...Jump to post
Always wear your seatbelt while seated. Flyingclrs727, this is a canned, but sadly commonly needed response: That's a quite typical a.net reaction where passengers are always at fault. That incident happened on a 777 around 45 minutes prior to landing. Some of the injured quite possibly were seated...Jump to post
747Whale: I'm sorry, but that's a quite typical a.net reaction where passengers are always at fault. That incident happened on a 777 around 45 minutes prior to landing. Some of the injured quite possibly were seated but not using seat belts. But at that point in the flight, many would be queuing up ...Jump to post
Here, nada so far, which is interesting. It is. And it could be due to them just being more careful/thorough/tightlipped this time or that they want to be very sure before releasing anything that is somehow surprising. Or even that they don't know... Lets review the facts again. Based on videos, th...Jump to post
That statement from NTSB is masterful, says something but still nothing. Back to biting my nails. Like, the cause of loss of control? Reasons outside the crew's influence i.e., mechanical, or crew-related confusion? And did the crew communication about the loss of control start 18 seconds prior to t...Jump to post
First, I think this thread is seriously hurt by the debate about malicious acts, perhaps *more* than simply mentioning them as one of the many possible causes. Can we get back on topic? (Again, I think all possible causes that could result in a crash so quickly should be on the list, no matter what ...Jump to post
I think people on this thread should chill... we should all get off our high horses. Or zebras :-) IIRC no one on this thread has claimed to have made a definite conclusion of what happened. I believe discussion of the list of possible theories that fit the observed event and current information is ...Jump to post
Let`s look at the last accidents on AVherald, several of them with a nosedive: Lionair B38M- looks like single sided AOA failure, manageable mismanaged situation by the crew who where not properly informed about new systems. PK-661 - catastrophic propeller failure due to fatigue - so basically main...Jump to post
I looked for the 2018 Finnair incident where I think a truck or bridge damaged one of their 350s. Couldn't find it. Then I looked for the some (more than one?) Airbus 380 incidents... couldn't find any either.
So maybe not complete then...
There are 6 things that bring down an aircraft in this manner: 1- load shift......doubt that based on the cargo. 2- Pitch trim runaway. Would be controllable IF they completed their immediate action items and turned off the STAB cutoff switches. 3- stall but it would have had to have been a deep st...Jump to post
I find the current arguments a bit tiring. This really isn't only about pilots. And I find the actual topic interesting. Are the incidents up? Or just better reported/inline with the growth of the industry? And if the incidents are on the increase or if the issue is considered bad enough, should we ...Jump to post
Yeah... Lufthansa used to be a great airline. Now they are a nickel-and-dime show. To sue your customers? This is ridiculous, they should be shamed of themselves. And let me guess, if Lufthansa doesn't do their part of the contract (like they didn't for my flights last week), the customer is the one...Jump to post
While, I understand the sentiment, the redundancy designed into an aircraft doesn't factor into my decision making process one bit when I exercise my authority to release. Thank you for that. (And fortunately that's true of almost every aviation professional and business, no matter where they are l...Jump to post
The trend with vents going away is its own topic. FWIW, I think it is great. On widebody aircraft the ceilings are relatively high up so individual flows don't work anyway. And of course you also know how mechanical, individually controlled vents tend to work: badly. Most people shut them off, but t...Jump to post
I think this thread is unnecessarily polarised. Yes, as 747Whale tells us, all airplanes need to be flown per the right procedures, and with sufficiently proficient pilots. And yes, the authorities have not demanded either the MD11 or any other widebody jets to have their certification pulled, due t...Jump to post
I am in agreement with others that this is an important topic and is getting less attention than it perhaps should. Is there any new information?Jump to post
I did not know of this incident. Thanks for posting!
TCAS is one amazing piece of engineering, btw.
It is great news for DY that they've gotten the additional financing. (Or plan to?) However, the real issue is whether they need to get this level of injection every 6 or 12 months. That won't be sustainable for long, so the only possible answer is getting the basic flight operations profitable, or ...Jump to post
Aircraft will work, -14C is typical in winter in Scandavian airports, and -30C wouldn't be a huge issue either. The usual kicker is de-icing, and runway clearing. Airports that don't have enough well-practiced capacity for these two will grind to a much slower pace, even if would be just a tiny bit ...Jump to post
CFIT? I'm not sure they knew the ground was so near... visibility was obviously poor, and not sure how good it would be from that plane's cockpit even in perfect conditions. Seemed an incredibly fast sink rate for the final phase of the landing. Of course, if the variable geometry was broken, then m...Jump to post
Lets remember that the CVR is not the only source of information, nor is this particular crew's action where this accident investigation ends (unless they were hugely negligent). Something bad happened, some fraction of blame goes to crew, some to other sources (e.g., airplane or user interface desi...Jump to post
This function sounds sensible, but I am also scared of the different failure modes. Seems like this crew found potentially one failure mode... would be bad if this was triggered in the air. That being said, Boeing engineers certainly know that for something like this they need to run the full analys...Jump to post
I do think that Berlin could sustain two airports, and indeed, looking at the capacities and traffic numbers, keeping both TXL and BER open seems to be the only way to avoid continued congestion. Both airports are close enough to be workable for large parts of the population. Both airports would wor...Jump to post
Considering flights at certain times of the day are full to the brim, you need some flights around LF 33% like this flight to get to 65% on average. Nothing out of the ordinary. Japanese airlines need the widebodies for peak hours and can't just park them all other times of the day, so they just us...Jump to post
It is difficult to know the exact split between investments in one city or the other. However, overall they are (somewhat) profitable. Obviously they aren't BA and in London. But, they seem to be running a decent operation. Some anecdotal evidence: HEL seems much, much more packed in the last two ye...Jump to post
I'm glad that the CVR has been found. Long-term effort always pays off. Despite conspiracy theorists. Lets just remember that the CVR is not all that matters. It will show serious confusion. At least. The pilots are at least partly to blame. But the question is how can we avoid such confusion in the...Jump to post
I also thought that the manoeuvre seemed pretty standard. (Although since I couldn't see ground for most of the video, I kept shouting, eject, eject!)
But, I thought the whole idea with generation 5 fighters is that they no longer need to "point the nose to shoot"...
I suppose AY likes to keep the EU-China market to itself
But, having no local airline partner in OW is a problem. Anytime one goes to a destination not served by AY, you're not going to be able to use your alliance.
Did you live at the airport during that time? Two hours sounds really short for waking up, getting dressed, packing your stuff, travelling to the airport, clearing security and heading to your gate. It is not necessarily that short. I don't usually do 5am departures, but I do 6:50am departures for ...Jump to post
AY has lots of around-the-midnight-time departures to Asia, 22:00 - 01:00 or so. You have a full day at the office or home, get to the airport, board, eat dinner, and sleep. Arrive at the destination sometime before noon or afternoon, depending on destination. Not bad. Actually this is the perfect a...Jump to post
Just had a “discussion” with my FO about a scenario in which we had a B767-300 flame out both engines due to Captain’s flubbing an attempt to balance fuel. The crew got the engines relit, and the Captain wanted to continue to destination. I'm not arguing with your opinion about what should have hap...Jump to post
Revelation wrote:The given wording:Following an in-flight engine failure or shutdown on an aeroplane with two engines
contradicts your view and supports Zeke's. In fact it seems to be intentionally chosen to avoid the ambiguity you insist is present.
Folks, whether or not the WSJ article has any grains of truth in it, please remember the Swiss cheese model. A failed component is not the only cause of an accident. For instance, in the AF 447 case, we can improve the sensors but can't make the never fail; the rest of the system (incl. pilots) must...Jump to post