I see a number of statements here - late in the thread - that suggest both a lack of review of previous posts, but also a number of scenarios not really supported by the information we have available. The latest publicly available reports seem to implicate the right thrust lever not responding to a...
Jump to postJust what exactly are you implying ? Are you suggesting that Boeing, the airline, or government agencies, or all together, are deliberately withholding information, just to enable some older aircraft to keep flying ? If past behaviour gives any clue for present action than at least one can have dou...
Jump to postThe Autopilot on the 737 Classic is simple, tried and tested. Boeing are not nervous about the outcome from this crash. We know for a fact the plane was having auto throttle issues. We know the engines had a severe asymmetric power setting We have had pilots here post that the crew should have noti...
Jump to postWhen it comes to automation as in general for the use of technology there is an uncritical approach best expressed in an almost religions believe in "progress". Whatever we use in the end it is more then questionable if it really make things safer, easier or any other improvement. with th...
Jump to postI agree Automation has overall made things safer - but pilots still have to know how to fly without it and always assume it's about to fail even if you are flying the latest and greatest aircraft or you decide to turn off the automation yourself. Things break and/or wear out. Humans makes errors mo...
Jump to postBoth Sully and the Captain of the Gimli Glider had glider experience. If you want to lump me in with them - I'm good with that. Fact is that Sully was saved from stall by the automation of the A320. Read the US1549 official report about that point: Page 89: "However, FDR data indicated that th...
Jump to postBoth Sully and the Captain of the Gimli Glider had glider experience. If you want to lump me in with them - I'm good with that. Fact is that Sully was saved from stall by the automation of the A320. Read the US1549 official report about that point: Page 89: "However, FDR data indicated that th...
Jump to postProbably zero advantage for Boeing in having an all electric aircraft with a digital bus also. Hundreds of miles of copper pairs must be the way to go. Look very unlikely that the copper pairs will not be for a good chunk of AFDX (ARINC 664) digital bus :D The aircraft industry have gradually shift...
Jump to postBut like for the bigger engines iteration, this will be more easy for Airbus than for Boeing for multiple reasons: FBW already there I thought Boeing already had FBW on the 777 - all versions - and the 787 - all versions -? Yes, but not on the 737, and this is my point: The A320 was designed from t...
Jump to postI believe this is the last iteration of the a320 and the 737 Both need to move to the more recent architectures of the A350 (A220 ?) and the 787 (777X ?). But like for the bigger engines iteration, this will be more easy for Airbus than for Boeing for multiple reasons: FBW already there, Electronic...
Jump to postIn both cases CRM was poor, pilots were not communicating what they were doing. I think it may show that designers may have put too much faith in good CRM being present. Adding force feedback, moving throttles, etc seems to be a step in the right direction. Agree on the causes. There are others inn...
Jump to postNo the A330 wasn't grounded but it and the A320 still have the Gemini Program/Atari joysticks with no feedback and not being linked that definitely contributed to that crash and that issue still hasn't been fixed. It's very off-topic to make a critic on the A320 only since all Airbus new aircraft s...
Jump to postAnd also eliminate any control feedback from said Computerized Fly by wire system - if you are advocating the A320 system is okay. The "said Computerized Fly by wire system" have his own "control feedback" already, with multiple redundancies and protections. The A320 family pion...
Jump to postCelebrated pilot Capt. Sully urges further updates to Boeing’s 737 MAX https://www.seattletimes.com/business/boeing-aerospace/celebrated-pilot-sully-urges-further-updates-to-boeings-737-max-and-to-older-737s/ :thumbsup: Yes. And complains about 737 MAX safety will most likely never end, especially ...
Jump to postFor the record, The Aviation Herald have analysed the FDR/CVR readout report in English and Persian: http://avherald.com/h?article=4d1aea51/0000&opt=0 https://www.cao.ir/web/accidents/reports?p_p_id=NetFormGetFile_WAR_NetForm&p_p_lifecycle=2&p_p_resource_id=getFile&_NetFormGetFile_WA...
Jump to postSwiss government, with immediate effect, close borders form anyone that don't have a legal document to enter.
My understanding is that the aircraft can still fly but passengers need to have the right paper to enter in Switzerland.
Does this seem like BS pandering to anyone else? I can still fly nonstop between the US, China, and South Korea. What’s the point of banning Poles, Finns, and Swiss, but allowing folks from the epicenter of the virus to come and go as they please? Swiss here, a few dozen kilometers from the Italian...
Jump to postSomething conspicuously missing from the CVR excerpts in the ET interim report is ANY mention of ANY checklist or even discussion of the problem. Forget about the runaway stabilizer NNC that the AD specified but no checklist for any problem. The discussion/action to cutout the stab trim switches ju...
Jump to postFirst, I think it should be clarified that when out of trim it is almost impossible to bring back using the manual wheel. It is possible with the electric trim switches. I was very disappointed that the interim report did not address an explanation as to why they moved the cutout switches while the...
Jump to postMy point being that nothing in my logical, engineering brain, indicates that even if you went back to the original trim wheel on the NG and MAX that it would move under the same conditions that the current wheel doesn't move. It seems clear to me that if we could go back in time to listen to the de...
Jump to postThe interim Ethiopian report is out. A defective AOA sensor apperently triggered the events. https://www.cbc.ca/news/world/ethiopia-crash-interim-report-1.5490763 :thumbsup: :checkmark: Thanks for that link. As expected there is a long part starting page 77 [PDF page 79] about the trim wheels. Ther...
Jump to postManual trim didn't work, crew tries to go back to electric trim but then MCAS kicks in and kills them. That's terrible. Did not know manual trim was also faulty. This is what happens on a 737 NG and 737 MAX after an extreme misstrim and a STAB TRIM CUTOUT at high speed: https://youtu.be/aoNOVlxJmow...
Jump to postHere's a link to the Ethiopian Airlines preliminary crash report: https://flightsafety.org/wp-content/uploads/2019/04/Preliminary-Report-B737-800MAX-ET-AVJ.pdf Warning: That report No. AI-01/19 is the one from one year ago, created the April 04 2019 according to the document metadata. I have a coll...
Jump to postXRAYretired wrote:Press release and report can be seen here. (hopefully mods will not delete this reference post as they did Calhoun NYT interview).
https://transportation.house.gov/news/p ... -findings-
https://transportation.house.gov/imo/me ... 202020.pdf
Can the COVID-19 kill the 737 MAX production ? The scenario is a such major airlines collapsing that annihilate so much orders than the Airbus capacity to deliver the A32x neo obliterate the production of additional 737 MAX. The risk is probably very low now as to happens the remaining orders need t...
Jump to postThe 737 is an outlier here because it will never be FBW, any attempt to do that will result in a new build frame as nothing from the 737 will be allowed over. The 737 pilots will probably be required to a specific training to operate the MAX, as the last available information suggest, we will see h...
Jump to postA single global standard applied uniformly would be very helpful, that's the point the Airbus head of training was making, and it's one I agree with. Simple, I think. How simple exactly, Airbus FBW system is vastly different from Boeing's even the basic core functionality is different, the critics ...
Jump to postSorry for you, but the future (post 737 MAX) will be full authority FBW for all majors commercial civil aircraft that will carry the very large part of the passengers on this planet. You very personal method to improve safety will not apply anymore. The "big red button and fly manually" i...
Jump to postI know you are stirring the pot as usual but yes, many people do. Including all the aviation authorities around the World which have grounded this dangerously botched design for one year now. Not that this will stop you and the cohort of those who'd rather try to deflect blame away from a greedy co...
Jump to postindcwby wrote:Qatar Airways Marketing their cleanliness of their aircraft in response to Coronavirus scare.
https://twitter.com/qatarairways/status ... 79809?s=20
This is what I don't get. Unless they've been on the moon for the last year, these pilots had to know what they would be tested on. If the FAA selected ME (not a pilot) for this test, I would react instantly because I know exactly what was coming. This makes no sense. They had to have thrown differ...
Jump to postI agree 100%. Almost a year has gone by, and still nobody knows (outside Boeing, maybe FAA), what's going on aerodynamically at the engine/pylon/leading edge interface, i.e., the root cause of the MAX problems. No flight test results, no wind tunnel test results, no CFD results. I thought that some...
Jump to post[...snip...] --Is the Max aerodynamically stable enough for the pilots to recover the high AOA without further help from MCAS? [...snip...] I agree 100%. Almost a year has gone by, and still nobody knows (outside Boeing, maybe FAA), what's going on aerodynamically at the engine/pylon/leading edge i...
Jump to postIf the FAA demands perfection they will never get it. It is too complicated. The fact that these pilots survived in the sim is a major plus and good for them. :checkmark: The " the FAA wants more training" story seems to imply that the FAA will not let the MAX fly again until no pilot nee...
Jump to postIf you do the math on the chances that the cascade of events that led to an MCAS 1.0 crash, it's also very, very, very low. That part is misinformation. Every experts reports to date point to the safety deficiency of the MCAS V1. A document was showed during the hearing that mathematically predicte...
Jump to postWow. If you are right then the airlines -- who are absolutely stuck with the MAX -- are going to have to be giving seats away to get the public back into the MAX. Where is the line for the free tickets? I've got places I want to go. Maybe not free - but half price may be a good idea for a while. If...
Jump to post// Read the angle of attack from the active sensor. Assume this value is correct without sanitation or cross-checking with the other sensor angleOfAttack = readAngleOfAttack(int sensorNumber); Possible actual MCAS code? Not for the MCAS V1 as there is only a single AoA sensor per FCC. The pilots ha...
Jump to postYou mean the people who designed and implemented MCAS 1.0 then decided pilots didn’t need to know about it? :crazy: And then proceeded to let the thing dawndart itself twice before doing anything about it. :boggled: To be fair, Boeing said they were going to fix MCAS before the Ethiopian crash - Re...
Jump to postPeople seem to conveniently forget how many of these issues crop up in service on Modern Jetliners even some that have been in service for decades. Excepting for MCAS all the other issues regulators are finding with the MAX are usual ones that would not require a grounding and be covered by the AD ...
Jump to postIndirectly that is true. If the "baseline" aerodynamic behavior didn't have any issue then MCAS wouldn't have been needed and, therefore, MCAS wouldn't have existed to command full nose down trim. However, the underlying aerodynamic behavior/instability had absolutely nothing to do with c...
Jump to postI don't disagree with anything you say. My post was in response to the suggestion that the "baseline" aerodynamic behavior of the MAX had something to do with the two crashes. That assertion is clearly not the case as it is known that the extreme nose down trim commanded by MCAS is what c...
Jump to post* Boeing will never give in to any demand from unwashed EASA. I thought I saw where it was posted that STS on the NG was the result of some EASA requirements, has EASA changed so much that Boeing no longer wants to work with them? OK, EASA predecessor JAA: https://www.flightglobal.com/737-700-recei...
Jump to postFrom http://avherald.com/h?article=4d1aea51&opt=0 : "Iran AIB's added the English translation to their updated preliminary report (starting at page 10 of the report after the Persian original)." https://www.cao.ir/web/accidents/reports?p_p_id=NetFormGetFile_WAR_NetForm&p_p_lifecycl...
Jump to postPerhaps from a privileged CVR. Perhaps not. It was the CVR of a Iranian registered airliner. On 23 January, the TSB announced that they had been invited by Iran to help with the flight recorders. So this could suggest that the TSB did download the CVR form EP3768. Or that someone was recording that...
Jump to postAgainst commercial civil aircraft ? No. Yes against any aircraft, you fly over the wrong places of Washington you will be intercepted and then shot down. https://theweek.com/articles/549964/futuristic-air-defense-system-washington-dc-defeated-by-postman 1) That area is clearly announced as restrict...
Jump to postI think that the governments that operate those weapons have to take there responsibility. There is nothing normal in allowing civil flights in a area where such insane weapons are in operation. How many SAM sites do you think are around cities like IAD, DME, TLV, RUH, it is absolutely normal for t...
Jump to postI have read the annex 13, and it appear that the "Non-disclosure of records" is only into the "RESPONSIBILITY OF THE STATE CONDUCTING THE INVESTIGATION" chapter. There nothing like this in the "RESPONSIBILITY OF ANY OTHER STATE" chapter. You continue to post blanket li...
Jump to postPlease give the list of counties with "100% SAM coverage" with references. Israel Singapore I wouldn't be surprised if Taiwan too. As for references, check the effective range of their missile systems vs the size of their territory. Just anacdotal evidence. Not sure if it is still true. B...
Jump to postIt's not rubbish, just a fact: ICAO = International Civil Aviation Organization ICAO defines the protocols for air accident investigation that are followed by transport safety authorities in countries signatory to the Chicago Convention on International Civil Aviation. The medias and the military a...
Jump to postICAO rules was defined to investigate accident, not military action. Hogwash, Annex 13 is for the investigation of all accidents and incidents of civil register aircraft regardless of how it is caused. The two preliminary reports were compiled under Annex 13. Annex 13 does not apply to non civil re...
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